39989200

素因数分解:

$2^4\times 5^2\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:664

約数の個数: 60

約数和(自身を含む): 96695820

約数和(自身を除く): 56706620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 257, 389, 400, 514, 778, 1028, 1285, 1556, 1945, 2056, 2570, 3112, 3890, 4112, 5140, 6224, 6425, 7780, 9725, 10280, 12850, 15560, 19450, 20560, 25700, 31120, 38900, 51400, 77800, 99973, 102800, 155600, 199946, 399892, 499865, 799784, 999730, 1599568, 1999460, 2499325, 3998920, 4998650, 7997840, 9997300, 19994600, 39989200]

約数ペア:

[(1, 39989200), (2, 19994600), (4, 9997300), (5, 7997840), (8, 4998650), (10, 3998920), (16, 2499325), (20, 1999460), (25, 1599568), (40, 999730), (50, 799784), (80, 499865), (100, 399892), (200, 199946), (257, 155600), (389, 102800), (400, 99973), (514, 77800), (778, 51400), (1028, 38900), (1285, 31120), (1556, 25700), (1945, 20560), (2056, 19450), (2570, 15560), (3112, 12850), (3890, 10280), (4112, 9725), (5140, 7780), (6224, 6425)]