81528570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31237}}^1$

素因数の和:31279

約数の個数: 48

約数和(自身を含む): 219290760

約数和(自身を除く): 137762190

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 31237, 62474, 93711, 156185, 187422, 281133, 312370, 468555, 562266, 905873, 937110, 1405665, 1811746, 2717619, 2811330, 4529365, 5435238, 8152857, 9058730, 13588095, 16305714, 27176190, 40764285, 81528570]

約数ペア:

[(1, 81528570), (2, 40764285), (3, 27176190), (5, 16305714), (6, 13588095), (9, 9058730), (10, 8152857), (15, 5435238), (18, 4529365), (29, 2811330), (30, 2717619), (45, 1811746), (58, 1405665), (87, 937110), (90, 905873), (145, 562266), (174, 468555), (261, 312370), (290, 281133), (435, 187422), (522, 156185), (870, 93711), (1305, 62474), (2610, 31237)]