71871950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 139812480

約数和(自身を除く): 67940530

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 89, 155, 178, 310, 445, 521, 775, 890, 1042, 1550, 2225, 2605, 2759, 4450, 5210, 5518, 13025, 13795, 16151, 26050, 27590, 32302, 46369, 68975, 80755, 92738, 137950, 161510, 231845, 403775, 463690, 807550, 1159225, 1437439, 2318450, 2874878, 7187195, 14374390, 35935975, 71871950]

約数ペア:

[(1, 71871950), (2, 35935975), (5, 14374390), (10, 7187195), (25, 2874878), (31, 2318450), (50, 1437439), (62, 1159225), (89, 807550), (155, 463690), (178, 403775), (310, 231845), (445, 161510), (521, 137950), (775, 92738), (890, 80755), (1042, 68975), (1550, 46369), (2225, 32302), (2605, 27590), (2759, 26050), (4450, 16151), (5210, 13795), (5518, 13025)]