15923720

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1549}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 35991000

約数和(自身を除く): 20067280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1549, 2056, 2570, 3098, 5140, 6196, 7745, 10280, 12392, 15490, 30980, 61960, 398093, 796186, 1592372, 1990465, 3184744, 3980930, 7961860, 15923720]

約数ペア:

[(1, 15923720), (2, 7961860), (4, 3980930), (5, 3184744), (8, 1990465), (10, 1592372), (20, 796186), (40, 398093), (257, 61960), (514, 30980), (1028, 15490), (1285, 12392), (1549, 10280), (2056, 7745), (2570, 6196), (3098, 5140)]