257419940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{5167}}^1$

素因数の和:5276

約数の個数: 48

約数和(自身を含む): 562609152

約数和(自身を除く): 305189212

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 188, 212, 235, 265, 470, 530, 940, 1060, 2491, 4982, 5167, 9964, 10334, 12455, 20668, 24910, 25835, 49820, 51670, 103340, 242849, 273851, 485698, 547702, 971396, 1095404, 1214245, 1369255, 2428490, 2738510, 4856980, 5477020, 12870997, 25741994, 51483988, 64354985, 128709970, 257419940]

約数ペア:

[(1, 257419940), (2, 128709970), (4, 64354985), (5, 51483988), (10, 25741994), (20, 12870997), (47, 5477020), (53, 4856980), (94, 2738510), (106, 2428490), (188, 1369255), (212, 1214245), (235, 1095404), (265, 971396), (470, 547702), (530, 485698), (940, 273851), (1060, 242849), (2491, 103340), (4982, 51670), (5167, 49820), (9964, 25835), (10334, 24910), (12455, 20668)]