81129280

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:264

約数の個数: 112

約数和(自身を含む): 205703424

約数和(自身を除く): 124574144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 73, 80, 92, 115, 146, 151, 160, 184, 230, 292, 302, 320, 365, 368, 460, 584, 604, 730, 736, 755, 920, 1168, 1208, 1460, 1472, 1510, 1679, 1840, 2336, 2416, 2920, 3020, 3358, 3473, 3680, 4672, 4832, 5840, 6040, 6716, 6946, 7360, 8395, 9664, 11023, 11680, 12080, 13432, 13892, 16790, 17365, 22046, 23360, 24160, 26864, 27784, 33580, 34730, 44092, 48320, 53728, 55115, 55568, 67160, 69460, 88184, 107456, 110230, 111136, 134320, 138920, 176368, 220460, 222272, 253529, 268640, 277840, 352736, 440920, 507058, 537280, 555680, 705472, 881840, 1014116, 1111360, 1267645, 1763680, 2028232, 2535290, 3527360, 4056464, 5070580, 8112928, 10141160, 16225856, 20282320, 40564640, 81129280]

約数ペア:

[(1, 81129280), (2, 40564640), (4, 20282320), (5, 16225856), (8, 10141160), (10, 8112928), (16, 5070580), (20, 4056464), (23, 3527360), (32, 2535290), (40, 2028232), (46, 1763680), (64, 1267645), (73, 1111360), (80, 1014116), (92, 881840), (115, 705472), (146, 555680), (151, 537280), (160, 507058), (184, 440920), (230, 352736), (292, 277840), (302, 268640), (320, 253529), (365, 222272), (368, 220460), (460, 176368), (584, 138920), (604, 134320), (730, 111136), (736, 110230), (755, 107456), (920, 88184), (1168, 69460), (1208, 67160), (1460, 55568), (1472, 55115), (1510, 53728), (1679, 48320), (1840, 44092), (2336, 34730), (2416, 33580), (2920, 27784), (3020, 26864), (3358, 24160), (3473, 23360), (3680, 22046), (4672, 17365), (4832, 16790), (5840, 13892), (6040, 13432), (6716, 12080), (6946, 11680), (7360, 11023), (8395, 9664)]