243485240

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{11959}}^1$

素因数の和:12479

約数の個数: 32

約数和(自身を含む): 548964000

約数和(自身を除く): 305478760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 11959, 20360, 23918, 47836, 59795, 95672, 119590, 239180, 478360, 6087131, 12174262, 24348524, 30435655, 48697048, 60871310, 121742620, 243485240]

約数ペア:

[(1, 243485240), (2, 121742620), (4, 60871310), (5, 48697048), (8, 30435655), (10, 24348524), (20, 12174262), (40, 6087131), (509, 478360), (1018, 239180), (2036, 119590), (2545, 95672), (4072, 59795), (5090, 47836), (10180, 23918), (11959, 20360)]