640236486

素因数分解:

$2^1\times 3^1\times {\mathrm{5081}}^1\times {\mathrm{21001}}^1$

素因数の和:26087

約数の個数: 16

約数和(自身を含む): 1280785968

約数和(自身を除く): 640549482

約数列:

[1, 2, 3, 6, 5081, 10162, 15243, 21001, 30486, 42002, 63003, 126006, 106706081, 213412162, 320118243, 640236486]

約数ペア:

[(1, 640236486), (2, 320118243), (3, 213412162), (6, 106706081), (5081, 126006), (10162, 63003), (15243, 42002), (21001, 30486)]