28350440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5099}}^1$

素因数の和:5249

約数の個数: 32

約数和(自身を含む): 64260000

約数和(自身を除く): 35909560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5099, 5560, 10198, 20396, 25495, 40792, 50990, 101980, 203960, 708761, 1417522, 2835044, 3543805, 5670088, 7087610, 14175220, 28350440]

約数ペア:

[(1, 28350440), (2, 14175220), (4, 7087610), (5, 5670088), (8, 3543805), (10, 2835044), (20, 1417522), (40, 708761), (139, 203960), (278, 101980), (556, 50990), (695, 40792), (1112, 25495), (1390, 20396), (2780, 10198), (5099, 5560)]