20123404545

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{6701}}^1$

素因数の和:7026

約数の個数: 64

約数和(自身を含む): 34858978560

約数和(自身を除く): 14735574015

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 257, 285, 615, 771, 779, 1285, 2337, 3855, 3895, 4883, 6701, 10537, 11685, 14649, 20103, 24415, 31611, 33505, 52685, 73245, 100515, 127319, 158055, 200203, 274741, 381957, 600609, 636595, 824223, 1001015, 1373705, 1722157, 1909785, 3003045, 4121115, 5166471, 5220079, 8610785, 15660237, 25832355, 26100395, 32720983, 70608437, 78301185, 98162949, 163604915, 211825311, 353042185, 490814745, 1059126555, 1341560303, 4024680909, 6707801515, 20123404545]

約数ペア:

[(1, 20123404545), (3, 6707801515), (5, 4024680909), (15, 1341560303), (19, 1059126555), (41, 490814745), (57, 353042185), (95, 211825311), (123, 163604915), (205, 98162949), (257, 78301185), (285, 70608437), (615, 32720983), (771, 26100395), (779, 25832355), (1285, 15660237), (2337, 8610785), (3855, 5220079), (3895, 5166471), (4883, 4121115), (6701, 3003045), (10537, 1909785), (11685, 1722157), (14649, 1373705), (20103, 1001015), (24415, 824223), (31611, 636595), (33505, 600609), (52685, 381957), (73245, 274741), (100515, 200203), (127319, 158055)]