18318800

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1117}}^1$

素因数の和:1176

約数の個数: 60

約数和(自身を含む): 45124716

約数和(自身を除く): 26805916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1117, 1640, 2050, 2234, 3280, 4100, 4468, 5585, 8200, 8936, 11170, 16400, 17872, 22340, 27925, 44680, 45797, 55850, 89360, 91594, 111700, 183188, 223400, 228985, 366376, 446800, 457970, 732752, 915940, 1144925, 1831880, 2289850, 3663760, 4579700, 9159400, 18318800]

約数ペア:

[(1, 18318800), (2, 9159400), (4, 4579700), (5, 3663760), (8, 2289850), (10, 1831880), (16, 1144925), (20, 915940), (25, 732752), (40, 457970), (41, 446800), (50, 366376), (80, 228985), (82, 223400), (100, 183188), (164, 111700), (200, 91594), (205, 89360), (328, 55850), (400, 45797), (410, 44680), (656, 27925), (820, 22340), (1025, 17872), (1117, 16400), (1640, 11170), (2050, 8936), (2234, 8200), (3280, 5585), (4100, 4468)]