285040240

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{31531}}^1$

素因数の和:31657

約数の個数: 40

約数和(自身を含む): 668604528

約数和(自身を除く): 383564288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 31531, 63062, 126124, 157655, 252248, 315310, 504496, 630620, 1261240, 2522480, 3563003, 7126006, 14252012, 17815015, 28504024, 35630030, 57008048, 71260060, 142520120, 285040240]

約数ペア:

[(1, 285040240), (2, 142520120), (4, 71260060), (5, 57008048), (8, 35630030), (10, 28504024), (16, 17815015), (20, 14252012), (40, 7126006), (80, 3563003), (113, 2522480), (226, 1261240), (452, 630620), (565, 504496), (904, 315310), (1130, 252248), (1808, 157655), (2260, 126124), (4520, 63062), (9040, 31531)]