18168400

素因数分解:

$2^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{857}}^1$

素因数の和:928

約数の個数: 60

約数和(自身を含む): 44525052

約数和(自身を除く): 26356652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 200, 212, 265, 400, 424, 530, 848, 857, 1060, 1325, 1714, 2120, 2650, 3428, 4240, 4285, 5300, 6856, 8570, 10600, 13712, 17140, 21200, 21425, 34280, 42850, 45421, 68560, 85700, 90842, 171400, 181684, 227105, 342800, 363368, 454210, 726736, 908420, 1135525, 1816840, 2271050, 3633680, 4542100, 9084200, 18168400]

約数ペア:

[(1, 18168400), (2, 9084200), (4, 4542100), (5, 3633680), (8, 2271050), (10, 1816840), (16, 1135525), (20, 908420), (25, 726736), (40, 454210), (50, 363368), (53, 342800), (80, 227105), (100, 181684), (106, 171400), (200, 90842), (212, 85700), (265, 68560), (400, 45421), (424, 42850), (530, 34280), (848, 21425), (857, 21200), (1060, 17140), (1325, 13712), (1714, 10600), (2120, 8570), (2650, 6856), (3428, 5300), (4240, 4285)]