71310280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 166199040

約数和(自身を除く): 94888760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 83, 94, 166, 188, 235, 332, 376, 415, 457, 470, 664, 830, 914, 940, 1660, 1828, 1880, 2285, 3320, 3656, 3901, 4570, 7802, 9140, 15604, 18280, 19505, 21479, 31208, 37931, 39010, 42958, 75862, 78020, 85916, 107395, 151724, 156040, 171832, 189655, 214790, 303448, 379310, 429580, 758620, 859160, 1517240, 1782757, 3565514, 7131028, 8913785, 14262056, 17827570, 35655140, 71310280]

約数ペア:

[(1, 71310280), (2, 35655140), (4, 17827570), (5, 14262056), (8, 8913785), (10, 7131028), (20, 3565514), (40, 1782757), (47, 1517240), (83, 859160), (94, 758620), (166, 429580), (188, 379310), (235, 303448), (332, 214790), (376, 189655), (415, 171832), (457, 156040), (470, 151724), (664, 107395), (830, 85916), (914, 78020), (940, 75862), (1660, 42958), (1828, 39010), (1880, 37931), (2285, 31208), (3320, 21479), (3656, 19505), (3901, 18280), (4570, 15604), (7802, 9140)]