28208920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37117}}^1$

素因数の和:37147

約数の個数: 32

約数和(自身を含む): 66812400

約数和(自身を除く): 38603480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 37117, 74234, 148468, 185585, 296936, 371170, 705223, 742340, 1410446, 1484680, 2820892, 3526115, 5641784, 7052230, 14104460, 28208920]

約数ペア:

[(1, 28208920), (2, 14104460), (4, 7052230), (5, 5641784), (8, 3526115), (10, 2820892), (19, 1484680), (20, 1410446), (38, 742340), (40, 705223), (76, 371170), (95, 296936), (152, 185585), (190, 148468), (380, 74234), (760, 37117)]