199281640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{160711}}^1$

素因数の和:160753

約数の個数: 32

約数和(自身を含む): 462850560

約数和(自身を除く): 263568920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 160711, 321422, 642844, 803555, 1285688, 1607110, 3214220, 4982041, 6428440, 9964082, 19928164, 24910205, 39856328, 49820410, 99640820, 199281640]

約数ペア:

[(1, 199281640), (2, 99640820), (4, 49820410), (5, 39856328), (8, 24910205), (10, 19928164), (20, 9964082), (31, 6428440), (40, 4982041), (62, 3214220), (124, 1607110), (155, 1285688), (248, 803555), (310, 642844), (620, 321422), (1240, 160711)]