1990514480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1309549}}^1$

素因数の和:1309581

約数の個数: 40

約数和(自身を含む): 4871526000

約数和(自身を除く): 2881011520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1309549, 2619098, 5238196, 6547745, 10476392, 13095490, 20952784, 24881431, 26190980, 49762862, 52381960, 99525724, 104763920, 124407155, 199051448, 248814310, 398102896, 497628620, 995257240, 1990514480]

約数ペア:

[(1, 1990514480), (2, 995257240), (4, 497628620), (5, 398102896), (8, 248814310), (10, 199051448), (16, 124407155), (19, 104763920), (20, 99525724), (38, 52381960), (40, 49762862), (76, 26190980), (80, 24881431), (95, 20952784), (152, 13095490), (190, 10476392), (304, 6547745), (380, 5238196), (760, 2619098), (1520, 1309549)]