18880625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{1777}}^1$

素因数の和:1814

約数の個数: 20

約数和(自身を含む): 24995124

約数和(自身を除く): 6114499

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 1777, 2125, 8885, 10625, 30209, 44425, 151045, 222125, 755225, 1110625, 3776125, 18880625]

約数ペア:

[(1, 18880625), (5, 3776125), (17, 1110625), (25, 755225), (85, 222125), (125, 151045), (425, 44425), (625, 30209), (1777, 10625), (2125, 8885)]