2442920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 5545800

約数和(自身を除く): 3102880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 389, 628, 778, 785, 1256, 1556, 1570, 1945, 3112, 3140, 3890, 6280, 7780, 15560, 61073, 122146, 244292, 305365, 488584, 610730, 1221460, 2442920]

約数ペア:

[(1, 2442920), (2, 1221460), (4, 610730), (5, 488584), (8, 305365), (10, 244292), (20, 122146), (40, 61073), (157, 15560), (314, 7780), (389, 6280), (628, 3890), (778, 3140), (785, 3112), (1256, 1945), (1556, 1570)]