51237485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 68584320

約数和(自身を除く): 17346835

約数列:

[1, 5, 13, 53, 65, 107, 139, 265, 535, 689, 695, 1391, 1807, 3445, 5671, 6955, 7367, 9035, 14873, 28355, 36835, 73723, 74365, 95771, 193349, 368615, 478855, 788269, 966745, 3941345, 10247497, 51237485]

約数ペア:

[(1, 51237485), (5, 10247497), (13, 3941345), (53, 966745), (65, 788269), (107, 478855), (139, 368615), (265, 193349), (535, 95771), (689, 74365), (695, 73723), (1391, 36835), (1807, 28355), (3445, 14873), (5671, 9035), (6955, 7367)]