12780640

素因数分解:

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

素因数の和:212

約数の個数: 72

約数和(自身を含む): 31773168

約数和(自身を除く): 18992528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 151, 160, 184, 230, 302, 368, 460, 529, 604, 736, 755, 920, 1058, 1208, 1510, 1840, 2116, 2416, 2645, 3020, 3473, 3680, 4232, 4832, 5290, 6040, 6946, 8464, 10580, 12080, 13892, 16928, 17365, 21160, 24160, 27784, 34730, 42320, 55568, 69460, 79879, 84640, 111136, 138920, 159758, 277840, 319516, 399395, 555680, 639032, 798790, 1278064, 1597580, 2556128, 3195160, 6390320, 12780640]

約数ペア:

[(1, 12780640), (2, 6390320), (4, 3195160), (5, 2556128), (8, 1597580), (10, 1278064), (16, 798790), (20, 639032), (23, 555680), (32, 399395), (40, 319516), (46, 277840), (80, 159758), (92, 138920), (115, 111136), (151, 84640), (160, 79879), (184, 69460), (230, 55568), (302, 42320), (368, 34730), (460, 27784), (529, 24160), (604, 21160), (736, 17365), (755, 16928), (920, 13892), (1058, 12080), (1208, 10580), (1510, 8464), (1840, 6946), (2116, 6040), (2416, 5290), (2645, 4832), (3020, 4232), (3473, 3680)]