25874980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 55996416

約数和(自身を除く): 30121436

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 167, 244, 254, 305, 334, 508, 610, 635, 668, 835, 1220, 1270, 1670, 2540, 3340, 7747, 10187, 15494, 20374, 21209, 30988, 38735, 40748, 42418, 50935, 77470, 84836, 101870, 106045, 154940, 203740, 212090, 424180, 1293749, 2587498, 5174996, 6468745, 12937490, 25874980]

約数ペア:

[(1, 25874980), (2, 12937490), (4, 6468745), (5, 5174996), (10, 2587498), (20, 1293749), (61, 424180), (122, 212090), (127, 203740), (167, 154940), (244, 106045), (254, 101870), (305, 84836), (334, 77470), (508, 50935), (610, 42418), (635, 40748), (668, 38735), (835, 30988), (1220, 21209), (1270, 20374), (1670, 15494), (2540, 10187), (3340, 7747)]