81017558

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 132300000

約数和(自身を除く): 51282442

約数列:

[1, 2, 19, 38, 41, 82, 149, 298, 349, 698, 779, 1558, 2831, 5662, 6109, 6631, 12218, 13262, 14309, 28618, 52001, 104002, 116071, 232142, 271871, 543742, 988019, 1976038, 2132041, 4264082, 40508779, 81017558]

約数ペア:

[(1, 81017558), (2, 40508779), (19, 4264082), (38, 2132041), (41, 1976038), (82, 988019), (149, 543742), (298, 271871), (349, 232142), (698, 116071), (779, 104002), (1558, 52001), (2831, 28618), (5662, 14309), (6109, 13262), (6631, 12218)]