408023320

素因数分解:

$2^3\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{8167}}^1$

素因数の和:9427

約数の個数: 32

約数和(自身を含む): 918900000

約数和(自身を除く): 510876680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1249, 2498, 4996, 6245, 8167, 9992, 12490, 16334, 24980, 32668, 40835, 49960, 65336, 81670, 163340, 326680, 10200583, 20401166, 40802332, 51002915, 81604664, 102005830, 204011660, 408023320]

約数ペア:

[(1, 408023320), (2, 204011660), (4, 102005830), (5, 81604664), (8, 51002915), (10, 40802332), (20, 20401166), (40, 10200583), (1249, 326680), (2498, 163340), (4996, 81670), (6245, 65336), (8167, 49960), (9992, 40835), (12490, 32668), (16334, 24980)]