18545240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 29665960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 619, 749, 856, 1070, 1238, 1498, 2140, 2476, 2996, 3095, 3745, 4280, 4333, 4952, 5992, 6190, 7490, 8666, 12380, 14980, 17332, 21665, 24760, 29960, 34664, 43330, 66233, 86660, 132466, 173320, 264932, 331165, 463631, 529864, 662330, 927262, 1324660, 1854524, 2318155, 2649320, 3709048, 4636310, 9272620, 18545240]

約数ペア:

[(1, 18545240), (2, 9272620), (4, 4636310), (5, 3709048), (7, 2649320), (8, 2318155), (10, 1854524), (14, 1324660), (20, 927262), (28, 662330), (35, 529864), (40, 463631), (56, 331165), (70, 264932), (107, 173320), (140, 132466), (214, 86660), (280, 66233), (428, 43330), (535, 34664), (619, 29960), (749, 24760), (856, 21665), (1070, 17332), (1238, 14980), (1498, 12380), (2140, 8666), (2476, 7490), (2996, 6190), (3095, 5992), (3745, 4952), (4280, 4333)]