18691590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1487}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 44997120

約数和(自身を除く): 26305530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 419, 838, 1257, 1487, 2095, 2514, 2974, 4190, 4461, 6285, 7435, 8922, 12570, 14870, 22305, 44610, 623053, 1246106, 1869159, 3115265, 3738318, 6230530, 9345795, 18691590]

約数ペア:

[(1, 18691590), (2, 9345795), (3, 6230530), (5, 3738318), (6, 3115265), (10, 1869159), (15, 1246106), (30, 623053), (419, 44610), (838, 22305), (1257, 14870), (1487, 12570), (2095, 8922), (2514, 7435), (2974, 6285), (4190, 4461)]