208887575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 290043936

約数和(自身を除く): 81156361

約数列:

[1, 5, 13, 25, 53, 65, 67, 181, 265, 325, 335, 689, 871, 905, 1325, 1675, 2353, 3445, 3551, 4355, 4525, 9593, 11765, 12127, 17225, 17755, 21775, 46163, 47965, 58825, 60635, 88775, 124709, 157651, 230815, 239825, 303175, 623545, 642731, 788255, 1154075, 3117725, 3213655, 3941275, 8355503, 16068275, 41777515, 208887575]

約数ペア:

[(1, 208887575), (5, 41777515), (13, 16068275), (25, 8355503), (53, 3941275), (65, 3213655), (67, 3117725), (181, 1154075), (265, 788255), (325, 642731), (335, 623545), (689, 303175), (871, 239825), (905, 230815), (1325, 157651), (1675, 124709), (2353, 88775), (3445, 60635), (3551, 58825), (4355, 47965), (4525, 46163), (9593, 21775), (11765, 17755), (12127, 17225)]