81370970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{3697}}^1$

素因数の和:3806

約数の個数: 32

約数和(自身を含む): 153363456

約数和(自身を除く): 71992486

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 2201, 3697, 4402, 7394, 11005, 18485, 22010, 36970, 114607, 229214, 262487, 524974, 573035, 1146070, 1312435, 2624870, 8137097, 16274194, 40685485, 81370970]

約数ペア:

[(1, 81370970), (2, 40685485), (5, 16274194), (10, 8137097), (31, 2624870), (62, 1312435), (71, 1146070), (142, 573035), (155, 524974), (310, 262487), (355, 229214), (710, 114607), (2201, 36970), (3697, 22010), (4402, 18485), (7394, 11005)]