68737220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 148756608

約数和(自身を除く): 80019388

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 257, 311, 430, 514, 622, 860, 1028, 1244, 1285, 1555, 2570, 3110, 5140, 6220, 11051, 13373, 22102, 26746, 44204, 53492, 55255, 66865, 79927, 110510, 133730, 159854, 221020, 267460, 319708, 399635, 799270, 1598540, 3436861, 6873722, 13747444, 17184305, 34368610, 68737220]

約数ペア:

[(1, 68737220), (2, 34368610), (4, 17184305), (5, 13747444), (10, 6873722), (20, 3436861), (43, 1598540), (86, 799270), (172, 399635), (215, 319708), (257, 267460), (311, 221020), (430, 159854), (514, 133730), (622, 110510), (860, 79927), (1028, 66865), (1244, 55255), (1285, 53492), (1555, 44204), (2570, 26746), (3110, 22102), (5140, 13373), (6220, 11051)]