15880080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 49711104

約数和(自身を除く): 33831024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 521, 635, 762, 1016, 1042, 1270, 1524, 1563, 1905, 2032, 2084, 2540, 2605, 3048, 3126, 3810, 4168, 5080, 5210, 6096, 6252, 7620, 7815, 8336, 10160, 10420, 12504, 15240, 15630, 20840, 25008, 30480, 31260, 41680, 62520, 66167, 125040, 132334, 198501, 264668, 330835, 397002, 529336, 661670, 794004, 992505, 1058672, 1323340, 1588008, 1985010, 2646680, 3176016, 3970020, 5293360, 7940040, 15880080]

約数ペア:

[(1, 15880080), (2, 7940040), (3, 5293360), (4, 3970020), (5, 3176016), (6, 2646680), (8, 1985010), (10, 1588008), (12, 1323340), (15, 1058672), (16, 992505), (20, 794004), (24, 661670), (30, 529336), (40, 397002), (48, 330835), (60, 264668), (80, 198501), (120, 132334), (127, 125040), (240, 66167), (254, 62520), (381, 41680), (508, 31260), (521, 30480), (635, 25008), (762, 20840), (1016, 15630), (1042, 15240), (1270, 12504), (1524, 10420), (1563, 10160), (1905, 8336), (2032, 7815), (2084, 7620), (2540, 6252), (2605, 6096), (3048, 5210), (3126, 5080), (3810, 4168)]