20199062720

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:611

約数の個数: 224

約数和(自身を含む): 52099951680

約数和(自身を除く): 31900888960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 97, 101, 136, 160, 170, 194, 202, 272, 320, 340, 379, 388, 404, 485, 505, 544, 680, 758, 776, 808, 970, 1010, 1088, 1360, 1516, 1552, 1616, 1649, 1717, 1895, 1940, 2020, 2720, 3032, 3104, 3232, 3298, 3434, 3790, 3880, 4040, 5440, 6064, 6208, 6443, 6464, 6596, 6868, 7580, 7760, 8080, 8245, 8585, 9797, 12128, 12886, 13192, 13736, 15160, 15520, 16160, 16490, 17170, 19594, 24256, 25772, 26384, 27472, 30320, 31040, 32215, 32320, 32980, 34340, 36763, 38279, 39188, 48985, 51544, 52768, 54944, 60640, 64430, 65960, 68680, 73526, 76558, 78376, 97970, 103088, 105536, 109888, 121280, 128860, 131920, 137360, 147052, 153116, 156752, 166549, 183815, 191395, 195940, 206176, 257720, 263840, 274720, 294104, 306232, 313504, 333098, 367630, 382790, 391880, 412352, 515440, 527680, 549440, 588208, 612464, 624971, 627008, 650743, 666196, 735260, 765580, 783760, 832745, 1030880, 1176416, 1224928, 1249942, 1301486, 1332392, 1470520, 1531160, 1567520, 1665490, 2061760, 2352832, 2449856, 2499884, 2602972, 2664784, 2941040, 3062320, 3124855, 3135040, 3253715, 3330980, 3713063, 4999768, 5205944, 5329568, 5882080, 6124640, 6249710, 6507430, 6661960, 7426126, 9999536, 10411888, 10659136, 11764160, 12249280, 12499420, 13014860, 13323920, 14852252, 18565315, 19999072, 20823776, 24998840, 26029720, 26647840, 29704504, 37130630, 39998144, 41647552, 49997680, 52059440, 53295680, 59409008, 63122071, 74261260, 99995360, 104118880, 118818016, 126244142, 148522520, 199990720, 208237760, 237636032, 252488284, 297045040, 315610355, 504976568, 594090080, 631220710, 1009953136, 1188180160, 1262441420, 2019906272, 2524882840, 4039812544, 5049765680, 10099531360, 20199062720]

約数ペア:

[(1, 20199062720), (2, 10099531360), (4, 5049765680), (5, 4039812544), (8, 2524882840), (10, 2019906272), (16, 1262441420), (17, 1188180160), (20, 1009953136), (32, 631220710), (34, 594090080), (40, 504976568), (64, 315610355), (68, 297045040), (80, 252488284), (85, 237636032), (97, 208237760), (101, 199990720), (136, 148522520), (160, 126244142), (170, 118818016), (194, 104118880), (202, 99995360), (272, 74261260), (320, 63122071), (340, 59409008), (379, 53295680), (388, 52059440), (404, 49997680), (485, 41647552), (505, 39998144), (544, 37130630), (680, 29704504), (758, 26647840), (776, 26029720), (808, 24998840), (970, 20823776), (1010, 19999072), (1088, 18565315), (1360, 14852252), (1516, 13323920), (1552, 13014860), (1616, 12499420), (1649, 12249280), (1717, 11764160), (1895, 10659136), (1940, 10411888), (2020, 9999536), (2720, 7426126), (3032, 6661960), (3104, 6507430), (3232, 6249710), (3298, 6124640), (3434, 5882080), (3790, 5329568), (3880, 5205944), (4040, 4999768), (5440, 3713063), (6064, 3330980), (6208, 3253715), (6443, 3135040), (6464, 3124855), (6596, 3062320), (6868, 2941040), (7580, 2664784), (7760, 2602972), (8080, 2499884), (8245, 2449856), (8585, 2352832), (9797, 2061760), (12128, 1665490), (12886, 1567520), (13192, 1531160), (13736, 1470520), (15160, 1332392), (15520, 1301486), (16160, 1249942), (16490, 1224928), (17170, 1176416), (19594, 1030880), (24256, 832745), (25772, 783760), (26384, 765580), (27472, 735260), (30320, 666196), (31040, 650743), (32215, 627008), (32320, 624971), (32980, 612464), (34340, 588208), (36763, 549440), (38279, 527680), (39188, 515440), (48985, 412352), (51544, 391880), (52768, 382790), (54944, 367630), (60640, 333098), (64430, 313504), (65960, 306232), (68680, 294104), (73526, 274720), (76558, 263840), (78376, 257720), (97970, 206176), (103088, 195940), (105536, 191395), (109888, 183815), (121280, 166549), (128860, 156752), (131920, 153116), (137360, 147052)]