6643940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19541}}^1$

素因数の和:19567

約数の個数: 24

約数和(自身を含む): 14773752

約数和(自身を除く): 8129812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 19541, 39082, 78164, 97705, 195410, 332197, 390820, 664394, 1328788, 1660985, 3321970, 6643940]

約数ペア:

[(1, 6643940), (2, 3321970), (4, 1660985), (5, 1328788), (10, 664394), (17, 390820), (20, 332197), (34, 195410), (68, 97705), (85, 78164), (170, 39082), (340, 19541)]