18365480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{613}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 47744640

約数和(自身を除く): 29379160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 613, 749, 856, 1070, 1226, 1498, 2140, 2452, 2996, 3065, 3745, 4280, 4291, 4904, 5992, 6130, 7490, 8582, 12260, 14980, 17164, 21455, 24520, 29960, 34328, 42910, 65591, 85820, 131182, 171640, 262364, 327955, 459137, 524728, 655910, 918274, 1311820, 1836548, 2295685, 2623640, 3673096, 4591370, 9182740, 18365480]

約数ペア:

[(1, 18365480), (2, 9182740), (4, 4591370), (5, 3673096), (7, 2623640), (8, 2295685), (10, 1836548), (14, 1311820), (20, 918274), (28, 655910), (35, 524728), (40, 459137), (56, 327955), (70, 262364), (107, 171640), (140, 131182), (214, 85820), (280, 65591), (428, 42910), (535, 34328), (613, 29960), (749, 24520), (856, 21455), (1070, 17164), (1226, 14980), (1498, 12260), (2140, 8582), (2452, 7490), (2996, 6130), (3065, 5992), (3745, 4904), (4280, 4291)]