828002020

素因数分解:

$2^2\times 5^1\times {\mathrm{2137}}^1\times {\mathrm{19373}}^1$

素因数の和:21519

約数の個数: 24

約数和(自身を含む): 1739707704

約数和(自身を除く): 911705684

約数列:

[1, 2, 4, 5, 10, 20, 2137, 4274, 8548, 10685, 19373, 21370, 38746, 42740, 77492, 96865, 193730, 387460, 41400101, 82800202, 165600404, 207000505, 414001010, 828002020]

約数ペア:

[(1, 828002020), (2, 414001010), (4, 207000505), (5, 165600404), (10, 82800202), (20, 41400101), (2137, 387460), (4274, 193730), (8548, 96865), (10685, 77492), (19373, 42740), (21370, 38746)]