18540460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17491}}^1$

素因数の和:17553

約数の個数: 24

約数和(自身を含む): 39671856

約数和(自身を除く): 21131396

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17491, 34982, 69964, 87455, 174910, 349820, 927023, 1854046, 3708092, 4635115, 9270230, 18540460]

約数ペア:

[(1, 18540460), (2, 9270230), (4, 4635115), (5, 3708092), (10, 1854046), (20, 927023), (53, 349820), (106, 174910), (212, 87455), (265, 69964), (530, 34982), (1060, 17491)]