84971920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{433}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 216986112

約数和(自身を除く): 132014192

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 223, 433, 440, 446, 866, 880, 892, 1115, 1732, 1784, 2165, 2230, 2453, 3464, 3568, 4330, 4460, 4763, 4906, 6928, 8660, 8920, 9526, 9812, 12265, 17320, 17840, 19052, 19624, 23815, 24530, 34640, 38104, 39248, 47630, 49060, 76208, 95260, 96559, 98120, 190520, 193118, 196240, 381040, 386236, 482795, 772472, 965590, 1062149, 1544944, 1931180, 2124298, 3862360, 4248596, 5310745, 7724720, 8497192, 10621490, 16994384, 21242980, 42485960, 84971920]

約数ペア:

[(1, 84971920), (2, 42485960), (4, 21242980), (5, 16994384), (8, 10621490), (10, 8497192), (11, 7724720), (16, 5310745), (20, 4248596), (22, 3862360), (40, 2124298), (44, 1931180), (55, 1544944), (80, 1062149), (88, 965590), (110, 772472), (176, 482795), (220, 386236), (223, 381040), (433, 196240), (440, 193118), (446, 190520), (866, 98120), (880, 96559), (892, 95260), (1115, 76208), (1732, 49060), (1784, 47630), (2165, 39248), (2230, 38104), (2453, 34640), (3464, 24530), (3568, 23815), (4330, 19624), (4460, 19052), (4763, 17840), (4906, 17320), (6928, 12265), (8660, 9812), (8920, 9526)]