78698530

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 144633600

約数和(自身を除く): 65935070

約数列:

[1, 2, 5, 10, 71, 142, 199, 355, 398, 557, 710, 995, 1114, 1990, 2785, 5570, 14129, 28258, 39547, 70645, 79094, 110843, 141290, 197735, 221686, 395470, 554215, 1108430, 7869853, 15739706, 39349265, 78698530]

約数ペア:

[(1, 78698530), (2, 39349265), (5, 15739706), (10, 7869853), (71, 1108430), (142, 554215), (199, 395470), (355, 221686), (398, 197735), (557, 141290), (710, 110843), (995, 79094), (1114, 70645), (1990, 39547), (2785, 28258), (5570, 14129)]