40394020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49261}}^1$

素因数の和:49311

約数の個数: 24

約数和(自身を含む): 86898168

約数和(自身を除く): 46504148

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 49261, 98522, 197044, 246305, 492610, 985220, 2019701, 4039402, 8078804, 10098505, 20197010, 40394020]

約数ペア:

[(1, 40394020), (2, 20197010), (4, 10098505), (5, 8078804), (10, 4039402), (20, 2019701), (41, 985220), (82, 492610), (164, 246305), (205, 197044), (410, 98522), (820, 49261)]