61803920

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7649}}^1$

素因数の和:7763

約数の個数: 40

約数和(自身を含む): 145135800

約数和(自身を除く): 83331880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 7649, 8080, 15298, 30596, 38245, 61192, 76490, 122384, 152980, 305960, 611920, 772549, 1545098, 3090196, 3862745, 6180392, 7725490, 12360784, 15450980, 30901960, 61803920]

約数ペア:

[(1, 61803920), (2, 30901960), (4, 15450980), (5, 12360784), (8, 7725490), (10, 6180392), (16, 3862745), (20, 3090196), (40, 1545098), (80, 772549), (101, 611920), (202, 305960), (404, 152980), (505, 122384), (808, 76490), (1010, 61192), (1616, 38245), (2020, 30596), (4040, 15298), (7649, 8080)]