20811510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4363}}^1$

素因数の和:4429

約数の個数: 48

約数和(自身を含む): 55143504

約数和(自身を除く): 34331994

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 90, 106, 159, 265, 318, 477, 530, 795, 954, 1590, 2385, 4363, 4770, 8726, 13089, 21815, 26178, 39267, 43630, 65445, 78534, 130890, 196335, 231239, 392670, 462478, 693717, 1156195, 1387434, 2081151, 2312390, 3468585, 4162302, 6937170, 10405755, 20811510]

約数ペア:

[(1, 20811510), (2, 10405755), (3, 6937170), (5, 4162302), (6, 3468585), (9, 2312390), (10, 2081151), (15, 1387434), (18, 1156195), (30, 693717), (45, 462478), (53, 392670), (90, 231239), (106, 196335), (159, 130890), (265, 78534), (318, 65445), (477, 43630), (530, 39267), (795, 26178), (954, 21815), (1590, 13089), (2385, 8726), (4363, 4770)]