87421040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{156109}}^1$

素因数の和:156129

約数の個数: 40

約数和(自身を含む): 232291680

約数和(自身を除く): 144870640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 156109, 312218, 624436, 780545, 1092763, 1248872, 1561090, 2185526, 2497744, 3122180, 4371052, 5463815, 6244360, 8742104, 10927630, 12488720, 17484208, 21855260, 43710520, 87421040]

約数ペア:

[(1, 87421040), (2, 43710520), (4, 21855260), (5, 17484208), (7, 12488720), (8, 10927630), (10, 8742104), (14, 6244360), (16, 5463815), (20, 4371052), (28, 3122180), (35, 2497744), (40, 2185526), (56, 1561090), (70, 1248872), (80, 1092763), (112, 780545), (140, 624436), (280, 312218), (560, 156109)]