204828820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{4447}}^1$

素因数の和:4517

約数の個数: 72

約数和(自身を含む): 511128576

約数和(自身を除く): 306299756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 2303, 3290, 4447, 4606, 6580, 8894, 9212, 11515, 17788, 22235, 23030, 31129, 44470, 46060, 62258, 88940, 124516, 155645, 209009, 217903, 311290, 418018, 435806, 622580, 836036, 871612, 1045045, 1089515, 1463063, 2090090, 2179030, 2926126, 4180180, 4358060, 5852252, 7315315, 10241441, 14630630, 20482882, 29261260, 40965764, 51207205, 102414410, 204828820]

約数ペア:

[(1, 204828820), (2, 102414410), (4, 51207205), (5, 40965764), (7, 29261260), (10, 20482882), (14, 14630630), (20, 10241441), (28, 7315315), (35, 5852252), (47, 4358060), (49, 4180180), (70, 2926126), (94, 2179030), (98, 2090090), (140, 1463063), (188, 1089515), (196, 1045045), (235, 871612), (245, 836036), (329, 622580), (470, 435806), (490, 418018), (658, 311290), (940, 217903), (980, 209009), (1316, 155645), (1645, 124516), (2303, 88940), (3290, 62258), (4447, 46060), (4606, 44470), (6580, 31129), (8894, 23030), (9212, 22235), (11515, 17788)]