18996880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{33923}}^1$

素因数の和:33943

約数の個数: 40

約数和(自身を含む): 50478912

約数和(自身を除く): 31482032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 33923, 67846, 135692, 169615, 237461, 271384, 339230, 474922, 542768, 678460, 949844, 1187305, 1356920, 1899688, 2374610, 2713840, 3799376, 4749220, 9498440, 18996880]

約数ペア:

[(1, 18996880), (2, 9498440), (4, 4749220), (5, 3799376), (7, 2713840), (8, 2374610), (10, 1899688), (14, 1356920), (16, 1187305), (20, 949844), (28, 678460), (35, 542768), (40, 474922), (56, 339230), (70, 271384), (80, 237461), (112, 169615), (140, 135692), (280, 67846), (560, 33923)]