85686380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 197560944

約数和(自身を除く): 111874564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 169, 202, 251, 260, 338, 404, 502, 505, 676, 845, 1004, 1010, 1255, 1313, 1690, 2020, 2510, 2626, 3263, 3380, 5020, 5252, 6526, 6565, 13052, 13130, 16315, 17069, 25351, 26260, 32630, 34138, 42419, 50702, 65260, 68276, 84838, 85345, 101404, 126755, 169676, 170690, 212095, 253510, 329563, 341380, 424190, 507020, 659126, 848380, 1318252, 1647815, 3295630, 4284319, 6591260, 8568638, 17137276, 21421595, 42843190, 85686380]

約数ペア:

[(1, 85686380), (2, 42843190), (4, 21421595), (5, 17137276), (10, 8568638), (13, 6591260), (20, 4284319), (26, 3295630), (52, 1647815), (65, 1318252), (101, 848380), (130, 659126), (169, 507020), (202, 424190), (251, 341380), (260, 329563), (338, 253510), (404, 212095), (502, 170690), (505, 169676), (676, 126755), (845, 101404), (1004, 85345), (1010, 84838), (1255, 68276), (1313, 65260), (1690, 50702), (2020, 42419), (2510, 34138), (2626, 32630), (3263, 26260), (3380, 25351), (5020, 17069), (5252, 16315), (6526, 13130), (6565, 13052)]