420773140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1\times {\mathrm{971}}^1$

素因数の和:1488

約数の個数: 48

約数和(自身を含む): 905313024

約数和(自身を除く): 484539884

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 461, 470, 922, 940, 971, 1844, 1942, 2305, 3884, 4610, 4855, 9220, 9710, 19420, 21667, 43334, 45637, 86668, 91274, 108335, 182548, 216670, 228185, 433340, 447631, 456370, 895262, 912740, 1790524, 2238155, 4476310, 8952620, 21038657, 42077314, 84154628, 105193285, 210386570, 420773140]

約数ペア:

[(1, 420773140), (2, 210386570), (4, 105193285), (5, 84154628), (10, 42077314), (20, 21038657), (47, 8952620), (94, 4476310), (188, 2238155), (235, 1790524), (461, 912740), (470, 895262), (922, 456370), (940, 447631), (971, 433340), (1844, 228185), (1942, 216670), (2305, 182548), (3884, 108335), (4610, 91274), (4855, 86668), (9220, 45637), (9710, 43334), (19420, 21667)]