7940040

素因数分解:

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

素因数の和:662

約数の個数: 64

約数和(自身を含む): 24053760

約数和(自身を除く): 16113720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 127, 254, 381, 508, 521, 635, 762, 1016, 1042, 1270, 1524, 1563, 1905, 2084, 2540, 2605, 3048, 3126, 3810, 4168, 5080, 5210, 6252, 7620, 7815, 10420, 12504, 15240, 15630, 20840, 31260, 62520, 66167, 132334, 198501, 264668, 330835, 397002, 529336, 661670, 794004, 992505, 1323340, 1588008, 1985010, 2646680, 3970020, 7940040]

約数ペア:

[(1, 7940040), (2, 3970020), (3, 2646680), (4, 1985010), (5, 1588008), (6, 1323340), (8, 992505), (10, 794004), (12, 661670), (15, 529336), (20, 397002), (24, 330835), (30, 264668), (40, 198501), (60, 132334), (120, 66167), (127, 62520), (254, 31260), (381, 20840), (508, 15630), (521, 15240), (635, 12504), (762, 10420), (1016, 7815), (1042, 7620), (1270, 6252), (1524, 5210), (1563, 5080), (1905, 4168), (2084, 3810), (2540, 3126), (2605, 3048)]