90865960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 213073920

約数和(自身を除く): 122207960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 577, 620, 635, 1016, 1154, 1240, 1270, 2308, 2540, 2885, 3937, 4616, 5080, 5770, 7874, 11540, 15748, 17887, 19685, 23080, 31496, 35774, 39370, 71548, 73279, 78740, 89435, 143096, 146558, 157480, 178870, 293116, 357740, 366395, 586232, 715480, 732790, 1465580, 2271649, 2931160, 4543298, 9086596, 11358245, 18173192, 22716490, 45432980, 90865960]

約数ペア:

[(1, 90865960), (2, 45432980), (4, 22716490), (5, 18173192), (8, 11358245), (10, 9086596), (20, 4543298), (31, 2931160), (40, 2271649), (62, 1465580), (124, 732790), (127, 715480), (155, 586232), (248, 366395), (254, 357740), (310, 293116), (508, 178870), (577, 157480), (620, 146558), (635, 143096), (1016, 89435), (1154, 78740), (1240, 73279), (1270, 71548), (2308, 39370), (2540, 35774), (2885, 31496), (3937, 23080), (4616, 19685), (5080, 17887), (5770, 15748), (7874, 11540)]