15951640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 38304000

約数和(自身を除く): 22352360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 151, 152, 190, 278, 302, 380, 556, 604, 695, 755, 760, 1112, 1208, 1390, 1510, 2641, 2780, 2869, 3020, 5282, 5560, 5738, 6040, 10564, 11476, 13205, 14345, 20989, 21128, 22952, 26410, 28690, 41978, 52820, 57380, 83956, 104945, 105640, 114760, 167912, 209890, 398791, 419780, 797582, 839560, 1595164, 1993955, 3190328, 3987910, 7975820, 15951640]

約数ペア:

[(1, 15951640), (2, 7975820), (4, 3987910), (5, 3190328), (8, 1993955), (10, 1595164), (19, 839560), (20, 797582), (38, 419780), (40, 398791), (76, 209890), (95, 167912), (139, 114760), (151, 105640), (152, 104945), (190, 83956), (278, 57380), (302, 52820), (380, 41978), (556, 28690), (604, 26410), (695, 22952), (755, 21128), (760, 20989), (1112, 14345), (1208, 13205), (1390, 11476), (1510, 10564), (2641, 6040), (2780, 5738), (2869, 5560), (3020, 5282)]