53931475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 76495104

約数和(自身を除く): 22563629

約数列:

[1, 5, 13, 25, 31, 53, 65, 101, 155, 265, 325, 403, 505, 689, 775, 1313, 1325, 1643, 2015, 2525, 3131, 3445, 5353, 6565, 8215, 10075, 15655, 17225, 21359, 26765, 32825, 40703, 41075, 69589, 78275, 106795, 133825, 165943, 203515, 347945, 533975, 829715, 1017575, 1739725, 2157259, 4148575, 10786295, 53931475]

約数ペア:

[(1, 53931475), (5, 10786295), (13, 4148575), (25, 2157259), (31, 1739725), (53, 1017575), (65, 829715), (101, 533975), (155, 347945), (265, 203515), (325, 165943), (403, 133825), (505, 106795), (689, 78275), (775, 69589), (1313, 41075), (1325, 40703), (1643, 32825), (2015, 26765), (2525, 21359), (3131, 17225), (3445, 15655), (5353, 10075), (6565, 8215)]