202012590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{517981}}^1$

素因数の和:518004

約数の個数: 32

約数和(自身を含む): 522125856

約数和(自身を除く): 320113266

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 517981, 1035962, 1553943, 2589905, 3107886, 5179810, 6733753, 7769715, 13467506, 15539430, 20201259, 33668765, 40402518, 67337530, 101006295, 202012590]

約数ペア:

[(1, 202012590), (2, 101006295), (3, 67337530), (5, 40402518), (6, 33668765), (10, 20201259), (13, 15539430), (15, 13467506), (26, 7769715), (30, 6733753), (39, 5179810), (65, 3107886), (78, 2589905), (130, 1553943), (195, 1035962), (390, 517981)]