163909820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{857}}^1$

素因数の和:1070

約数の個数: 48

約数和(自身を含む): 351999648

約数和(自身を除く): 188089828

約数列:

[1, 2, 4, 5, 10, 20, 73, 131, 146, 262, 292, 365, 524, 655, 730, 857, 1310, 1460, 1714, 2620, 3428, 4285, 8570, 9563, 17140, 19126, 38252, 47815, 62561, 95630, 112267, 125122, 191260, 224534, 250244, 312805, 449068, 561335, 625610, 1122670, 1251220, 2245340, 8195491, 16390982, 32781964, 40977455, 81954910, 163909820]

約数ペア:

[(1, 163909820), (2, 81954910), (4, 40977455), (5, 32781964), (10, 16390982), (20, 8195491), (73, 2245340), (131, 1251220), (146, 1122670), (262, 625610), (292, 561335), (365, 449068), (524, 312805), (655, 250244), (730, 224534), (857, 191260), (1310, 125122), (1460, 112267), (1714, 95630), (2620, 62561), (3428, 47815), (4285, 38252), (8570, 19126), (9563, 17140)]