278353175

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{1213}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 353157456

約数和(自身を除く): 74804281

約数列:

[1, 5, 25, 67, 137, 335, 685, 1213, 1675, 3425, 6065, 9179, 30325, 45895, 81271, 166181, 229475, 406355, 830905, 2031775, 4154525, 11134127, 55670635, 278353175]

約数ペア:

[(1, 278353175), (5, 55670635), (25, 11134127), (67, 4154525), (137, 2031775), (335, 830905), (685, 406355), (1213, 229475), (1675, 166181), (3425, 81271), (6065, 45895), (9179, 30325)]