91120180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 196035840

約数和(自身を除く): 104915660

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 316, 395, 404, 505, 571, 790, 1010, 1142, 1580, 2020, 2284, 2855, 5710, 7979, 11420, 15958, 31916, 39895, 45109, 57671, 79790, 90218, 115342, 159580, 180436, 225545, 230684, 288355, 451090, 576710, 902180, 1153420, 4556009, 9112018, 18224036, 22780045, 45560090, 91120180]

約数ペア:

[(1, 91120180), (2, 45560090), (4, 22780045), (5, 18224036), (10, 9112018), (20, 4556009), (79, 1153420), (101, 902180), (158, 576710), (202, 451090), (316, 288355), (395, 230684), (404, 225545), (505, 180436), (571, 159580), (790, 115342), (1010, 90218), (1142, 79790), (1580, 57671), (2020, 45109), (2284, 39895), (2855, 31916), (5710, 15958), (7979, 11420)]