321009780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:303

約数の個数: 288

約数和(自身を含む): 1161530496

約数和(自身を除く): 840520716

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 37, 39, 42, 49, 52, 60, 65, 70, 74, 78, 84, 91, 98, 105, 111, 130, 140, 147, 148, 156, 182, 185, 195, 196, 210, 222, 227, 245, 259, 260, 273, 294, 364, 370, 390, 420, 444, 454, 455, 481, 490, 518, 546, 555, 588, 637, 681, 735, 740, 777, 780, 908, 910, 962, 980, 1036, 1092, 1110, 1135, 1274, 1295, 1362, 1365, 1443, 1470, 1554, 1589, 1813, 1820, 1911, 1924, 2220, 2270, 2405, 2548, 2590, 2724, 2730, 2886, 2940, 2951, 3108, 3178, 3185, 3367, 3405, 3626, 3822, 3885, 4540, 4767, 4810, 5180, 5439, 5460, 5772, 5902, 6356, 6370, 6734, 6810, 7215, 7252, 7644, 7770, 7945, 8399, 8853, 9065, 9534, 9555, 9620, 10101, 10878, 11123, 11804, 12740, 13468, 13620, 14430, 14755, 15540, 15890, 16798, 16835, 17706, 18130, 19068, 19110, 20202, 20657, 21756, 22246, 23569, 23835, 25197, 27195, 28860, 29510, 31780, 33369, 33596, 33670, 35412, 36260, 38220, 40404, 41314, 41995, 44265, 44492, 47138, 47670, 50394, 50505, 54390, 55615, 58793, 59020, 61971, 66738, 67340, 70707, 82628, 83990, 88530, 94276, 95340, 100788, 101010, 103285, 108780, 109187, 111230, 117586, 117845, 123942, 125985, 133476, 141414, 144599, 166845, 167980, 176379, 177060, 202020, 206570, 218374, 222460, 235172, 235690, 247884, 251970, 282828, 289198, 293965, 309855, 327561, 333690, 352758, 353535, 411551, 413140, 433797, 436748, 471380, 503940, 545935, 578396, 587930, 619710, 655122, 667380, 705516, 707070, 722995, 764309, 823102, 867594, 881895, 1091870, 1175860, 1234653, 1239420, 1310244, 1414140, 1445990, 1528618, 1637805, 1646204, 1735188, 1763790, 2057755, 2168985, 2183740, 2292927, 2469306, 2891980, 3057236, 3275610, 3527580, 3821545, 4115510, 4337970, 4585854, 4938612, 5350163, 6173265, 6551220, 7643090, 8231020, 8675940, 9171708, 10700326, 11464635, 12346530, 15286180, 16050489, 21400652, 22929270, 24693060, 26750815, 32100978, 45858540, 53501630, 64201956, 80252445, 107003260, 160504890, 321009780]

約数ペア:

[(1, 321009780), (2, 160504890), (3, 107003260), (4, 80252445), (5, 64201956), (6, 53501630), (7, 45858540), (10, 32100978), (12, 26750815), (13, 24693060), (14, 22929270), (15, 21400652), (20, 16050489), (21, 15286180), (26, 12346530), (28, 11464635), (30, 10700326), (35, 9171708), (37, 8675940), (39, 8231020), (42, 7643090), (49, 6551220), (52, 6173265), (60, 5350163), (65, 4938612), (70, 4585854), (74, 4337970), (78, 4115510), (84, 3821545), (91, 3527580), (98, 3275610), (105, 3057236), (111, 2891980), (130, 2469306), (140, 2292927), (147, 2183740), (148, 2168985), (156, 2057755), (182, 1763790), (185, 1735188), (195, 1646204), (196, 1637805), (210, 1528618), (222, 1445990), (227, 1414140), (245, 1310244), (259, 1239420), (260, 1234653), (273, 1175860), (294, 1091870), (364, 881895), (370, 867594), (390, 823102), (420, 764309), (444, 722995), (454, 707070), (455, 705516), (481, 667380), (490, 655122), (518, 619710), (546, 587930), (555, 578396), (588, 545935), (637, 503940), (681, 471380), (735, 436748), (740, 433797), (777, 413140), (780, 411551), (908, 353535), (910, 352758), (962, 333690), (980, 327561), (1036, 309855), (1092, 293965), (1110, 289198), (1135, 282828), (1274, 251970), (1295, 247884), (1362, 235690), (1365, 235172), (1443, 222460), (1470, 218374), (1554, 206570), (1589, 202020), (1813, 177060), (1820, 176379), (1911, 167980), (1924, 166845), (2220, 144599), (2270, 141414), (2405, 133476), (2548, 125985), (2590, 123942), (2724, 117845), (2730, 117586), (2886, 111230), (2940, 109187), (2951, 108780), (3108, 103285), (3178, 101010), (3185, 100788), (3367, 95340), (3405, 94276), (3626, 88530), (3822, 83990), (3885, 82628), (4540, 70707), (4767, 67340), (4810, 66738), (5180, 61971), (5439, 59020), (5460, 58793), (5772, 55615), (5902, 54390), (6356, 50505), (6370, 50394), (6734, 47670), (6810, 47138), (7215, 44492), (7252, 44265), (7644, 41995), (7770, 41314), (7945, 40404), (8399, 38220), (8853, 36260), (9065, 35412), (9534, 33670), (9555, 33596), (9620, 33369), (10101, 31780), (10878, 29510), (11123, 28860), (11804, 27195), (12740, 25197), (13468, 23835), (13620, 23569), (14430, 22246), (14755, 21756), (15540, 20657), (15890, 20202), (16798, 19110), (16835, 19068), (17706, 18130)]