20796970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{919}}^1$

素因数の和:1030

約数の個数: 32

約数和(自身を含む): 39214080

約数和(自身を除く): 18417110

約数列:

[1, 2, 5, 10, 31, 62, 73, 146, 155, 310, 365, 730, 919, 1838, 2263, 4526, 4595, 9190, 11315, 22630, 28489, 56978, 67087, 134174, 142445, 284890, 335435, 670870, 2079697, 4159394, 10398485, 20796970]

約数ペア:

[(1, 20796970), (2, 10398485), (5, 4159394), (10, 2079697), (31, 670870), (62, 335435), (73, 284890), (146, 142445), (155, 134174), (310, 67087), (365, 56978), (730, 28489), (919, 22630), (1838, 11315), (2263, 9190), (4526, 4595)]