202400020

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{20611}}^1$

素因数の和:21111

約数の個数: 24

約数和(自身を含む): 425926368

約数和(自身を除く): 223526348

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 20611, 41222, 82444, 103055, 206110, 412220, 10120001, 20240002, 40480004, 50600005, 101200010, 202400020]

約数ペア:

[(1, 202400020), (2, 101200010), (4, 50600005), (5, 40480004), (10, 20240002), (20, 10120001), (491, 412220), (982, 206110), (1964, 103055), (2455, 82444), (4910, 41222), (9820, 20611)]