290932590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{745981}}^1$

素因数の和:746004

約数の個数: 32

約数和(自身を含む): 751949856

約数和(自身を除く): 461017266

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 745981, 1491962, 2237943, 3729905, 4475886, 7459810, 9697753, 11189715, 19395506, 22379430, 29093259, 48488765, 58186518, 96977530, 145466295, 290932590]

約数ペア:

[(1, 290932590), (2, 145466295), (3, 96977530), (5, 58186518), (6, 48488765), (10, 29093259), (13, 22379430), (15, 19395506), (26, 11189715), (30, 9697753), (39, 7459810), (65, 4475886), (78, 3729905), (130, 2237943), (195, 1491962), (390, 745981)]