40122920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6389}}^1$

素因数の和:6557

約数の個数: 32

約数和(自身を含む): 90865800

約数和(自身を除く): 50742880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 6389, 12778, 25556, 31945, 51112, 63890, 127780, 255560, 1003073, 2006146, 4012292, 5015365, 8024584, 10030730, 20061460, 40122920]

約数ペア:

[(1, 40122920), (2, 20061460), (4, 10030730), (5, 8024584), (8, 5015365), (10, 4012292), (20, 2006146), (40, 1003073), (157, 255560), (314, 127780), (628, 63890), (785, 51112), (1256, 31945), (1570, 25556), (3140, 12778), (6280, 6389)]