20726743570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{22277}}^1$

素因数の和:22735

約数の個数: 64

約数和(自身を含む): 42644369376

約数和(自身を除く): 21917625806

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 421, 442, 842, 1105, 2105, 2210, 4210, 5473, 7157, 10946, 14314, 22277, 27365, 35785, 44554, 54730, 71570, 93041, 111385, 186082, 222770, 289601, 378709, 465205, 579202, 757418, 930410, 1448005, 1893545, 2896010, 3787090, 4923217, 9378617, 9846434, 18757234, 24616085, 46893085, 49232170, 93786170, 121922021, 159436489, 243844042, 318872978, 609610105, 797182445, 1219220210, 1594364890, 2072674357, 4145348714, 10363371785, 20726743570]

約数ペア:

[(1, 20726743570), (2, 10363371785), (5, 4145348714), (10, 2072674357), (13, 1594364890), (17, 1219220210), (26, 797182445), (34, 609610105), (65, 318872978), (85, 243844042), (130, 159436489), (170, 121922021), (221, 93786170), (421, 49232170), (442, 46893085), (842, 24616085), (1105, 18757234), (2105, 9846434), (2210, 9378617), (4210, 4923217), (5473, 3787090), (7157, 2896010), (10946, 1893545), (14314, 1448005), (22277, 930410), (27365, 757418), (35785, 579202), (44554, 465205), (54730, 378709), (71570, 289601), (93041, 222770), (111385, 186082)]