80906680

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12409}}^1$

素因数の和:12583

約数の個数: 32

約数和(自身を含む): 183171600

約数和(自身を除く): 102264920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12409, 24818, 49636, 62045, 99272, 124090, 248180, 496360, 2022667, 4045334, 8090668, 10113335, 16181336, 20226670, 40453340, 80906680]

約数ペア:

[(1, 80906680), (2, 40453340), (4, 20226670), (5, 16181336), (8, 10113335), (10, 8090668), (20, 4045334), (40, 2022667), (163, 496360), (326, 248180), (652, 124090), (815, 99272), (1304, 62045), (1630, 49636), (3260, 24818), (6520, 12409)]