20398010

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{677}}^1$

素因数の和:838

約数の個数: 32

約数和(自身を含む): 38662272

約数和(自身を除く): 18264262

約数列:

[1, 2, 5, 10, 23, 46, 115, 131, 230, 262, 655, 677, 1310, 1354, 3013, 3385, 6026, 6770, 15065, 15571, 30130, 31142, 77855, 88687, 155710, 177374, 443435, 886870, 2039801, 4079602, 10199005, 20398010]

約数ペア:

[(1, 20398010), (2, 10199005), (5, 4079602), (10, 2039801), (23, 886870), (46, 443435), (115, 177374), (131, 155710), (230, 88687), (262, 77855), (655, 31142), (677, 30130), (1310, 15571), (1354, 15065), (3013, 6770), (3385, 6026)]