21051200

素因数分解:

$2^6\times 5^2\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:304

約数の個数: 84

約数和(自身を含む): 52913280

約数和(自身を除く): 31862080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 80, 100, 118, 160, 200, 223, 236, 295, 320, 400, 446, 472, 590, 800, 892, 944, 1115, 1180, 1475, 1600, 1784, 1888, 2230, 2360, 2950, 3568, 3776, 4460, 4720, 5575, 5900, 7136, 8920, 9440, 11150, 11800, 13157, 14272, 17840, 18880, 22300, 23600, 26314, 35680, 44600, 47200, 52628, 65785, 71360, 89200, 94400, 105256, 131570, 178400, 210512, 263140, 328925, 356800, 421024, 526280, 657850, 842048, 1052560, 1315700, 2105120, 2631400, 4210240, 5262800, 10525600, 21051200]

約数ペア:

[(1, 21051200), (2, 10525600), (4, 5262800), (5, 4210240), (8, 2631400), (10, 2105120), (16, 1315700), (20, 1052560), (25, 842048), (32, 657850), (40, 526280), (50, 421024), (59, 356800), (64, 328925), (80, 263140), (100, 210512), (118, 178400), (160, 131570), (200, 105256), (223, 94400), (236, 89200), (295, 71360), (320, 65785), (400, 52628), (446, 47200), (472, 44600), (590, 35680), (800, 26314), (892, 23600), (944, 22300), (1115, 18880), (1180, 17840), (1475, 14272), (1600, 13157), (1784, 11800), (1888, 11150), (2230, 9440), (2360, 8920), (2950, 7136), (3568, 5900), (3776, 5575), (4460, 4720)]