99984380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{56171}}^1$

素因数の和:56269

約数の個数: 24

約数和(自身を含む): 212330160

約数和(自身を除く): 112345780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 56171, 112342, 224684, 280855, 561710, 1123420, 4999219, 9998438, 19996876, 24996095, 49992190, 99984380]

約数ペア:

[(1, 99984380), (2, 49992190), (4, 24996095), (5, 19996876), (10, 9998438), (20, 4999219), (89, 1123420), (178, 561710), (356, 280855), (445, 224684), (890, 112342), (1780, 56171)]