18461480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11257}}^1$

素因数の和:11309

約数の個数: 32

約数和(自身を含む): 42555240

約数和(自身を除く): 24093760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11257, 22514, 45028, 56285, 90056, 112570, 225140, 450280, 461537, 923074, 1846148, 2307685, 3692296, 4615370, 9230740, 18461480]

約数ペア:

[(1, 18461480), (2, 9230740), (4, 4615370), (5, 3692296), (8, 2307685), (10, 1846148), (20, 923074), (40, 461537), (41, 450280), (82, 225140), (164, 112570), (205, 90056), (328, 56285), (410, 45028), (820, 22514), (1640, 11257)]