18839470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{463}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 36715392

約数和(自身を除く): 17875922

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 313, 463, 626, 926, 1565, 2315, 3130, 4069, 4630, 6019, 8138, 12038, 20345, 30095, 40690, 60190, 144919, 289838, 724595, 1449190, 1883947, 3767894, 9419735, 18839470]

約数ペア:

[(1, 18839470), (2, 9419735), (5, 3767894), (10, 1883947), (13, 1449190), (26, 724595), (65, 289838), (130, 144919), (313, 60190), (463, 40690), (626, 30095), (926, 20345), (1565, 12038), (2315, 8138), (3130, 6019), (4069, 4630)]