81544645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{647}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 121056768

約数和(自身を除く): 39512123

約数列:

[1, 5, 7, 13, 35, 65, 91, 277, 455, 647, 1385, 1939, 3235, 3601, 4529, 8411, 9695, 18005, 22645, 25207, 42055, 58877, 126035, 179219, 294385, 896095, 1254533, 2329847, 6272665, 11649235, 16308929, 81544645]

約数ペア:

[(1, 81544645), (5, 16308929), (7, 11649235), (13, 6272665), (35, 2329847), (65, 1254533), (91, 896095), (277, 294385), (455, 179219), (647, 126035), (1385, 58877), (1939, 42055), (3235, 25207), (3601, 22645), (4529, 18005), (8411, 9695)]