20281510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2251}}^1$

素因数の和:2328

約数の個数: 32

約数和(自身を含む): 39400992

約数和(自身を除く): 19119482

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2251, 4502, 4505, 9010, 11255, 22510, 38267, 76534, 119303, 191335, 238606, 382670, 596515, 1193030, 2028151, 4056302, 10140755, 20281510]

約数ペア:

[(1, 20281510), (2, 10140755), (5, 4056302), (10, 2028151), (17, 1193030), (34, 596515), (53, 382670), (85, 238606), (106, 191335), (170, 119303), (265, 76534), (530, 38267), (901, 22510), (1802, 11255), (2251, 9010), (4502, 4505)]