18218360

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{743}}^1$

素因数の和:1367

約数の個数: 32

約数和(自身を含む): 41113440

約数和(自身を除く): 22895080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 743, 1226, 1486, 2452, 2972, 3065, 3715, 4904, 5944, 6130, 7430, 12260, 14860, 24520, 29720, 455459, 910918, 1821836, 2277295, 3643672, 4554590, 9109180, 18218360]

約数ペア:

[(1, 18218360), (2, 9109180), (4, 4554590), (5, 3643672), (8, 2277295), (10, 1821836), (20, 910918), (40, 455459), (613, 29720), (743, 24520), (1226, 14860), (1486, 12260), (2452, 7430), (2972, 6130), (3065, 5944), (3715, 4904)]