28306040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2351}}^1$

素因数の和:2412

約数の個数: 64

約数和(自身を含む): 74511360

約数和(自身を除く): 46205320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2351, 2408, 3010, 4702, 6020, 9404, 11755, 12040, 16457, 18808, 23510, 32914, 47020, 65828, 82285, 94040, 101093, 131656, 164570, 202186, 329140, 404372, 505465, 658280, 707651, 808744, 1010930, 1415302, 2021860, 2830604, 3538255, 4043720, 5661208, 7076510, 14153020, 28306040]

約数ペア:

[(1, 28306040), (2, 14153020), (4, 7076510), (5, 5661208), (7, 4043720), (8, 3538255), (10, 2830604), (14, 2021860), (20, 1415302), (28, 1010930), (35, 808744), (40, 707651), (43, 658280), (56, 505465), (70, 404372), (86, 329140), (140, 202186), (172, 164570), (215, 131656), (280, 101093), (301, 94040), (344, 82285), (430, 65828), (602, 47020), (860, 32914), (1204, 23510), (1505, 18808), (1720, 16457), (2351, 12040), (2408, 11755), (3010, 9404), (4702, 6020)]