19382480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18637}}^1$

素因数の和:18663

約数の個数: 40

約数和(自身を含む): 48533352

約数和(自身を除く): 29150872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18637, 37274, 74548, 93185, 149096, 186370, 242281, 298192, 372740, 484562, 745480, 969124, 1211405, 1490960, 1938248, 2422810, 3876496, 4845620, 9691240, 19382480]

約数ペア:

[(1, 19382480), (2, 9691240), (4, 4845620), (5, 3876496), (8, 2422810), (10, 1938248), (13, 1490960), (16, 1211405), (20, 969124), (26, 745480), (40, 484562), (52, 372740), (65, 298192), (80, 242281), (104, 186370), (130, 149096), (208, 93185), (260, 74548), (520, 37274), (1040, 18637)]