81808888

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{6551}}^1$

素因数の和:6787

約数の個数: 32

約数和(自身を含む): 176117760

約数和(自身を除く): 94308872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1561, 1784, 3122, 6244, 6551, 12488, 13102, 26204, 45857, 52408, 91714, 183428, 366856, 1460873, 2921746, 5843492, 10226111, 11686984, 20452222, 40904444, 81808888]

約数ペア:

[(1, 81808888), (2, 40904444), (4, 20452222), (7, 11686984), (8, 10226111), (14, 5843492), (28, 2921746), (56, 1460873), (223, 366856), (446, 183428), (892, 91714), (1561, 52408), (1784, 45857), (3122, 26204), (6244, 13102), (6551, 12488)]