3970020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 11225088

約数和(自身を除く): 7255068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 521, 635, 762, 1042, 1270, 1524, 1563, 1905, 2084, 2540, 2605, 3126, 3810, 5210, 6252, 7620, 7815, 10420, 15630, 31260, 66167, 132334, 198501, 264668, 330835, 397002, 661670, 794004, 992505, 1323340, 1985010, 3970020]

約数ペア:

[(1, 3970020), (2, 1985010), (3, 1323340), (4, 992505), (5, 794004), (6, 661670), (10, 397002), (12, 330835), (15, 264668), (20, 198501), (30, 132334), (60, 66167), (127, 31260), (254, 15630), (381, 10420), (508, 7815), (521, 7620), (635, 6252), (762, 5210), (1042, 3810), (1270, 3126), (1524, 2605), (1563, 2540), (1905, 2084)]