28445825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{811}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 37455936

約数和(自身を除く): 9010111

約数列:

[1, 5, 23, 25, 61, 115, 305, 575, 811, 1403, 1525, 4055, 7015, 18653, 20275, 35075, 49471, 93265, 247355, 466325, 1137833, 1236775, 5689165, 28445825]

約数ペア:

[(1, 28445825), (5, 5689165), (23, 1236775), (25, 1137833), (61, 466325), (115, 247355), (305, 93265), (575, 49471), (811, 35075), (1403, 20275), (1525, 18653), (4055, 7015)]