17940620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10079}}^1$

素因数の和:10177

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 20161780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10079, 20158, 40316, 50395, 100790, 201580, 897031, 1794062, 3588124, 4485155, 8970310, 17940620]

約数ペア:

[(1, 17940620), (2, 8970310), (4, 4485155), (5, 3588124), (10, 1794062), (20, 897031), (89, 201580), (178, 100790), (356, 50395), (445, 40316), (890, 20158), (1780, 10079)]