17128940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9623}}^1$

素因数の和:9721

約数の個数: 24

約数和(自身を含む): 36378720

約数和(自身を除く): 19249780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 9623, 19246, 38492, 48115, 96230, 192460, 856447, 1712894, 3425788, 4282235, 8564470, 17128940]

約数ペア:

[(1, 17128940), (2, 8564470), (4, 4282235), (5, 3425788), (10, 1712894), (20, 856447), (89, 192460), (178, 96230), (356, 48115), (445, 38492), (890, 19246), (1780, 9623)]