2129840

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 5029440

約数和(自身を除く): 2899600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 337, 395, 632, 674, 790, 1264, 1348, 1580, 1685, 2696, 3160, 3370, 5392, 6320, 6740, 13480, 26623, 26960, 53246, 106492, 133115, 212984, 266230, 425968, 532460, 1064920, 2129840]

約数ペア:

[(1, 2129840), (2, 1064920), (4, 532460), (5, 425968), (8, 266230), (10, 212984), (16, 133115), (20, 106492), (40, 53246), (79, 26960), (80, 26623), (158, 13480), (316, 6740), (337, 6320), (395, 5392), (632, 3370), (674, 3160), (790, 2696), (1264, 1685), (1348, 1580)]