78982240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25981}}^1$

素因数の和:26015

約数の個数: 48

約数和(自身を含む): 196423920

約数和(自身を除く): 117441680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 25981, 51962, 103924, 129905, 207848, 259810, 415696, 493639, 519620, 831392, 987278, 1039240, 1974556, 2078480, 2468195, 3949112, 4156960, 4936390, 7898224, 9872780, 15796448, 19745560, 39491120, 78982240]

約数ペア:

[(1, 78982240), (2, 39491120), (4, 19745560), (5, 15796448), (8, 9872780), (10, 7898224), (16, 4936390), (19, 4156960), (20, 3949112), (32, 2468195), (38, 2078480), (40, 1974556), (76, 1039240), (80, 987278), (95, 831392), (152, 519620), (160, 493639), (190, 415696), (304, 259810), (380, 207848), (608, 129905), (760, 103924), (1520, 51962), (3040, 25981)]