128575715

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{491}}^1\times {\mathrm{631}}^1$

素因数の和:1210

約数の個数: 16

約数和(自身を含む): 156715776

約数和(自身を除く): 28140061

約数列:

[1, 5, 83, 415, 491, 631, 2455, 3155, 40753, 52373, 203765, 261865, 309821, 1549105, 25715143, 128575715]

約数ペア:

[(1, 128575715), (5, 25715143), (83, 1549105), (415, 309821), (491, 261865), (631, 203765), (2455, 52373), (3155, 40753)]