74507920

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1409}}^1$

素因数の和:2083

約数の個数: 40

約数和(自身を含む): 173616120

約数和(自身を除く): 99108200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1322, 1409, 2644, 2818, 3305, 5288, 5636, 6610, 7045, 10576, 11272, 13220, 14090, 22544, 26440, 28180, 52880, 56360, 112720, 931349, 1862698, 3725396, 4656745, 7450792, 9313490, 14901584, 18626980, 37253960, 74507920]

約数ペア:

[(1, 74507920), (2, 37253960), (4, 18626980), (5, 14901584), (8, 9313490), (10, 7450792), (16, 4656745), (20, 3725396), (40, 1862698), (80, 931349), (661, 112720), (1322, 56360), (1409, 52880), (2644, 28180), (2818, 26440), (3305, 22544), (5288, 14090), (5636, 13220), (6610, 11272), (7045, 10576)]