20641856

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:451

約数の個数: 56

約数和(自身を含む): 44013120

約数和(自身を除く): 23371264

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 64, 74, 92, 148, 184, 296, 368, 379, 592, 736, 758, 851, 1184, 1472, 1516, 1702, 2368, 3032, 3404, 6064, 6808, 8717, 12128, 13616, 14023, 17434, 24256, 27232, 28046, 34868, 54464, 56092, 69736, 112184, 139472, 224368, 278944, 322529, 448736, 557888, 645058, 897472, 1290116, 2580232, 5160464, 10320928, 20641856]

約数ペア:

[(1, 20641856), (2, 10320928), (4, 5160464), (8, 2580232), (16, 1290116), (23, 897472), (32, 645058), (37, 557888), (46, 448736), (64, 322529), (74, 278944), (92, 224368), (148, 139472), (184, 112184), (296, 69736), (368, 56092), (379, 54464), (592, 34868), (736, 28046), (758, 27232), (851, 24256), (1184, 17434), (1472, 14023), (1516, 13616), (1702, 12128), (2368, 8717), (3032, 6808), (3404, 6064)]