989270990

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1\times {\mathrm{1831}}^1$

素因数の和:2492

約数の個数: 32

約数和(自身を含む): 1803259584

約数和(自身を除く): 813988594

約数列:

[1, 2, 5, 10, 97, 194, 485, 557, 970, 1114, 1831, 2785, 3662, 5570, 9155, 18310, 54029, 108058, 177607, 270145, 355214, 540290, 888035, 1019867, 1776070, 2039734, 5099335, 10198670, 98927099, 197854198, 494635495, 989270990]

約数ペア:

[(1, 989270990), (2, 494635495), (5, 197854198), (10, 98927099), (97, 10198670), (194, 5099335), (485, 2039734), (557, 1776070), (970, 1019867), (1114, 888035), (1831, 540290), (2785, 355214), (3662, 270145), (5570, 177607), (9155, 108058), (18310, 54029)]