4885840

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 11461320

約数和(自身を除く): 6575480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 389, 628, 778, 785, 1256, 1556, 1570, 1945, 2512, 3112, 3140, 3890, 6224, 6280, 7780, 12560, 15560, 31120, 61073, 122146, 244292, 305365, 488584, 610730, 977168, 1221460, 2442920, 4885840]

約数ペア:

[(1, 4885840), (2, 2442920), (4, 1221460), (5, 977168), (8, 610730), (10, 488584), (16, 305365), (20, 244292), (40, 122146), (80, 61073), (157, 31120), (314, 15560), (389, 12560), (628, 7780), (778, 6280), (785, 6224), (1256, 3890), (1556, 3140), (1570, 3112), (1945, 2512)]