98877980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{62581}}^1$

素因数の和:62669

約数の個数: 24

約数和(自身を含む): 210275520

約数和(自身を除く): 111397540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 62581, 125162, 250324, 312905, 625810, 1251620, 4943899, 9887798, 19775596, 24719495, 49438990, 98877980]

約数ペア:

[(1, 98877980), (2, 49438990), (4, 24719495), (5, 19775596), (10, 9887798), (20, 4943899), (79, 1251620), (158, 625810), (316, 312905), (395, 250324), (790, 125162), (1580, 62581)]