15976880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4871}}^1$

素因数の和:4925

約数の個数: 40

約数和(自身を含む): 38060064

約数和(自身を除く): 22083184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4871, 9742, 19484, 24355, 38968, 48710, 77936, 97420, 194840, 199711, 389680, 399422, 798844, 998555, 1597688, 1997110, 3195376, 3994220, 7988440, 15976880]

約数ペア:

[(1, 15976880), (2, 7988440), (4, 3994220), (5, 3195376), (8, 1997110), (10, 1597688), (16, 998555), (20, 798844), (40, 399422), (41, 389680), (80, 199711), (82, 194840), (164, 97420), (205, 77936), (328, 48710), (410, 38968), (656, 24355), (820, 19484), (1640, 9742), (3280, 4871)]