90408040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{132953}}^1$

素因数の和:132981

約数の個数: 32

約数和(自身を含む): 215385480

約数和(自身を除く): 124977440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 132953, 265906, 531812, 664765, 1063624, 1329530, 2260201, 2659060, 4520402, 5318120, 9040804, 11301005, 18081608, 22602010, 45204020, 90408040]

約数ペア:

[(1, 90408040), (2, 45204020), (4, 22602010), (5, 18081608), (8, 11301005), (10, 9040804), (17, 5318120), (20, 4520402), (34, 2659060), (40, 2260201), (68, 1329530), (85, 1063624), (136, 664765), (170, 531812), (340, 265906), (680, 132953)]