20210353280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{617}}^1$

素因数の和:807

約数の個数: 256

約数和(自身を含む): 54221045760

約数和(自身を除く): 34010692480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 127, 128, 130, 155, 160, 208, 248, 254, 260, 310, 320, 403, 416, 496, 508, 520, 617, 620, 635, 640, 806, 832, 992, 1016, 1040, 1234, 1240, 1270, 1612, 1651, 1664, 1984, 2015, 2032, 2080, 2468, 2480, 2540, 3085, 3224, 3302, 3937, 3968, 4030, 4064, 4160, 4936, 4960, 5080, 6170, 6448, 6604, 7874, 8021, 8060, 8128, 8255, 8320, 9872, 9920, 10160, 12340, 12896, 13208, 15748, 16042, 16120, 16256, 16510, 19127, 19685, 19744, 19840, 20320, 24680, 25792, 26416, 31496, 32084, 32240, 33020, 38254, 39370, 39488, 40105, 40640, 49360, 51181, 51584, 52832, 62992, 64168, 64480, 66040, 76508, 78359, 78740, 78976, 80210, 81280, 95635, 98720, 102362, 105664, 125984, 128336, 128960, 132080, 153016, 156718, 157480, 160420, 191270, 197440, 204724, 211328, 248651, 251968, 255905, 256672, 257920, 264160, 306032, 313436, 314960, 320840, 382540, 391795, 394880, 409448, 497302, 503936, 511810, 513344, 528320, 612064, 626872, 629920, 641680, 765080, 783590, 818896, 994604, 1018667, 1023620, 1026688, 1056640, 1224128, 1243255, 1253744, 1259840, 1283360, 1530160, 1567180, 1637792, 1989208, 2037334, 2047240, 2429129, 2448256, 2486510, 2507488, 2519680, 2566720, 3060320, 3134360, 3275584, 3978416, 4074668, 4094480, 4858258, 4973020, 5014976, 5093335, 5133440, 6120640, 6268720, 6551168, 7956832, 8149336, 8188960, 9716516, 9946040, 10029952, 10186670, 12145645, 12241280, 12537440, 15913664, 16298672, 16377920, 19433032, 19892080, 20373340, 24291290, 25074880, 31578677, 31827328, 32597344, 32755840, 38866064, 39784160, 40746680, 48582580, 50149760, 63157354, 65194688, 77732128, 79568320, 81493360, 97165160, 126314708, 130389376, 155464256, 157893385, 159136640, 162986720, 194330320, 252629416, 310928512, 315786770, 325973440, 388660640, 505258832, 631573540, 651946880, 777321280, 1010517664, 1263147080, 1554642560, 2021035328, 2526294160, 4042070656, 5052588320, 10105176640, 20210353280]

約数ペア:

[(1, 20210353280), (2, 10105176640), (4, 5052588320), (5, 4042070656), (8, 2526294160), (10, 2021035328), (13, 1554642560), (16, 1263147080), (20, 1010517664), (26, 777321280), (31, 651946880), (32, 631573540), (40, 505258832), (52, 388660640), (62, 325973440), (64, 315786770), (65, 310928512), (80, 252629416), (104, 194330320), (124, 162986720), (127, 159136640), (128, 157893385), (130, 155464256), (155, 130389376), (160, 126314708), (208, 97165160), (248, 81493360), (254, 79568320), (260, 77732128), (310, 65194688), (320, 63157354), (403, 50149760), (416, 48582580), (496, 40746680), (508, 39784160), (520, 38866064), (617, 32755840), (620, 32597344), (635, 31827328), (640, 31578677), (806, 25074880), (832, 24291290), (992, 20373340), (1016, 19892080), (1040, 19433032), (1234, 16377920), (1240, 16298672), (1270, 15913664), (1612, 12537440), (1651, 12241280), (1664, 12145645), (1984, 10186670), (2015, 10029952), (2032, 9946040), (2080, 9716516), (2468, 8188960), (2480, 8149336), (2540, 7956832), (3085, 6551168), (3224, 6268720), (3302, 6120640), (3937, 5133440), (3968, 5093335), (4030, 5014976), (4064, 4973020), (4160, 4858258), (4936, 4094480), (4960, 4074668), (5080, 3978416), (6170, 3275584), (6448, 3134360), (6604, 3060320), (7874, 2566720), (8021, 2519680), (8060, 2507488), (8128, 2486510), (8255, 2448256), (8320, 2429129), (9872, 2047240), (9920, 2037334), (10160, 1989208), (12340, 1637792), (12896, 1567180), (13208, 1530160), (15748, 1283360), (16042, 1259840), (16120, 1253744), (16256, 1243255), (16510, 1224128), (19127, 1056640), (19685, 1026688), (19744, 1023620), (19840, 1018667), (20320, 994604), (24680, 818896), (25792, 783590), (26416, 765080), (31496, 641680), (32084, 629920), (32240, 626872), (33020, 612064), (38254, 528320), (39370, 513344), (39488, 511810), (40105, 503936), (40640, 497302), (49360, 409448), (51181, 394880), (51584, 391795), (52832, 382540), (62992, 320840), (64168, 314960), (64480, 313436), (66040, 306032), (76508, 264160), (78359, 257920), (78740, 256672), (78976, 255905), (80210, 251968), (81280, 248651), (95635, 211328), (98720, 204724), (102362, 197440), (105664, 191270), (125984, 160420), (128336, 157480), (128960, 156718), (132080, 153016)]