81517884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{3581}}^1$

素因数の和:3866

約数の個数: 48

約数和(自身を含む): 218244096

約数和(自身を除く): 136726212

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 271, 542, 813, 1084, 1626, 1897, 3252, 3581, 3794, 5691, 7162, 7588, 10743, 11382, 14324, 21486, 22764, 25067, 42972, 50134, 75201, 100268, 150402, 300804, 970451, 1940902, 2911353, 3881804, 5822706, 6793157, 11645412, 13586314, 20379471, 27172628, 40758942, 81517884]

約数ペア:

[(1, 81517884), (2, 40758942), (3, 27172628), (4, 20379471), (6, 13586314), (7, 11645412), (12, 6793157), (14, 5822706), (21, 3881804), (28, 2911353), (42, 1940902), (84, 970451), (271, 300804), (542, 150402), (813, 100268), (1084, 75201), (1626, 50134), (1897, 42972), (3252, 25067), (3581, 22764), (3794, 21486), (5691, 14324), (7162, 11382), (7588, 10743)]