81930728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25163}}^1$

素因数の和:25217

約数の個数: 32

約数和(自身を含む): 172121760

約数和(自身を除く): 90191032

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 25163, 50326, 100652, 201304, 276793, 553586, 931031, 1107172, 1862062, 2214344, 3724124, 7448248, 10241341, 20482682, 40965364, 81930728]

約数ペア:

[(1, 81930728), (2, 40965364), (4, 20482682), (8, 10241341), (11, 7448248), (22, 3724124), (37, 2214344), (44, 1862062), (74, 1107172), (88, 931031), (148, 553586), (296, 276793), (407, 201304), (814, 100652), (1628, 50326), (3256, 25163)]