20766408

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{659}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 56548800

約数和(自身を除く): 35782392

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 101, 104, 156, 202, 303, 312, 404, 606, 659, 808, 1212, 1313, 1318, 1977, 2424, 2626, 2636, 3939, 3954, 5252, 5272, 7878, 7908, 8567, 10504, 15756, 15816, 17134, 25701, 31512, 34268, 51402, 66559, 68536, 102804, 133118, 199677, 205608, 266236, 399354, 532472, 798708, 865267, 1597416, 1730534, 2595801, 3461068, 5191602, 6922136, 10383204, 20766408]

約数ペア:

[(1, 20766408), (2, 10383204), (3, 6922136), (4, 5191602), (6, 3461068), (8, 2595801), (12, 1730534), (13, 1597416), (24, 865267), (26, 798708), (39, 532472), (52, 399354), (78, 266236), (101, 205608), (104, 199677), (156, 133118), (202, 102804), (303, 68536), (312, 66559), (404, 51402), (606, 34268), (659, 31512), (808, 25701), (1212, 17134), (1313, 15816), (1318, 15756), (1977, 10504), (2424, 8567), (2626, 7908), (2636, 7878), (3939, 5272), (3954, 5252)]