81960328

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{409}}^1\times {\mathrm{677}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 158448600

約数和(自身を除く): 76488272

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 409, 677, 818, 1354, 1636, 2708, 3272, 5416, 15133, 25049, 30266, 50098, 60532, 100196, 121064, 200392, 276893, 553786, 1107572, 2215144, 10245041, 20490082, 40980164, 81960328]

約数ペア:

[(1, 81960328), (2, 40980164), (4, 20490082), (8, 10245041), (37, 2215144), (74, 1107572), (148, 553786), (296, 276893), (409, 200392), (677, 121064), (818, 100196), (1354, 60532), (1636, 50098), (2708, 30266), (3272, 25049), (5416, 15133)]