18013040

素因数分解:

$2^4\times 5^1\times {\mathrm{225163}}^1$

素因数の和:225176

約数の個数: 20

約数和(自身を含む): 41880504

約数和(自身を除く): 23867464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225163, 450326, 900652, 1125815, 1801304, 2251630, 3602608, 4503260, 9006520, 18013040]

約数ペア:

[(1, 18013040), (2, 9006520), (4, 4503260), (5, 3602608), (8, 2251630), (10, 1801304), (16, 1125815), (20, 900652), (40, 450326), (80, 225163)]