78796040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 187920000

約数和(自身を除く): 109123960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 199, 380, 398, 521, 760, 796, 995, 1042, 1592, 1990, 2084, 2605, 3781, 3980, 4168, 5210, 7562, 7960, 9899, 10420, 15124, 18905, 19798, 20840, 30248, 37810, 39596, 49495, 75620, 79192, 98990, 103679, 151240, 197980, 207358, 395960, 414716, 518395, 829432, 1036790, 1969901, 2073580, 3939802, 4147160, 7879604, 9849505, 15759208, 19699010, 39398020, 78796040]

約数ペア:

[(1, 78796040), (2, 39398020), (4, 19699010), (5, 15759208), (8, 9849505), (10, 7879604), (19, 4147160), (20, 3939802), (38, 2073580), (40, 1969901), (76, 1036790), (95, 829432), (152, 518395), (190, 414716), (199, 395960), (380, 207358), (398, 197980), (521, 151240), (760, 103679), (796, 98990), (995, 79192), (1042, 75620), (1592, 49495), (1990, 39596), (2084, 37810), (2605, 30248), (3781, 20840), (3980, 19798), (4168, 18905), (5210, 15124), (7562, 10420), (7960, 9899)]