248988580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1607}}^1$

素因数の和:1804

約数の個数: 48

約数和(自身を含む): 535965696

約数和(自身を除く): 286977116

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 244, 254, 305, 508, 610, 635, 1220, 1270, 1607, 2540, 3214, 6428, 7747, 8035, 15494, 16070, 30988, 32140, 38735, 77470, 98027, 154940, 196054, 204089, 392108, 408178, 490135, 816356, 980270, 1020445, 1960540, 2040890, 4081780, 12449429, 24898858, 49797716, 62247145, 124494290, 248988580]

約数ペア:

[(1, 248988580), (2, 124494290), (4, 62247145), (5, 49797716), (10, 24898858), (20, 12449429), (61, 4081780), (122, 2040890), (127, 1960540), (244, 1020445), (254, 980270), (305, 816356), (508, 490135), (610, 408178), (635, 392108), (1220, 204089), (1270, 196054), (1607, 154940), (2540, 98027), (3214, 77470), (6428, 38735), (7747, 32140), (8035, 30988), (15494, 16070)]