18440800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 144

約数和(自身を含む): 53434080

約数和(自身を除く): 34993280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 37, 40, 50, 56, 70, 74, 80, 89, 100, 112, 140, 148, 160, 175, 178, 185, 200, 224, 259, 280, 296, 350, 356, 370, 400, 445, 518, 560, 592, 623, 700, 712, 740, 800, 890, 925, 1036, 1120, 1184, 1246, 1295, 1400, 1424, 1480, 1780, 1850, 2072, 2225, 2492, 2590, 2800, 2848, 2960, 3115, 3293, 3560, 3700, 4144, 4450, 4984, 5180, 5600, 5920, 6230, 6475, 6586, 7120, 7400, 8288, 8900, 9968, 10360, 12460, 12950, 13172, 14240, 14800, 15575, 16465, 17800, 19936, 20720, 23051, 24920, 25900, 26344, 29600, 31150, 32930, 35600, 41440, 46102, 49840, 51800, 52688, 62300, 65860, 71200, 82325, 92204, 99680, 103600, 105376, 115255, 124600, 131720, 164650, 184408, 207200, 230510, 249200, 263440, 329300, 368816, 461020, 498400, 526880, 576275, 658600, 737632, 922040, 1152550, 1317200, 1844080, 2305100, 2634400, 3688160, 4610200, 9220400, 18440800]

約数ペア:

[(1, 18440800), (2, 9220400), (4, 4610200), (5, 3688160), (7, 2634400), (8, 2305100), (10, 1844080), (14, 1317200), (16, 1152550), (20, 922040), (25, 737632), (28, 658600), (32, 576275), (35, 526880), (37, 498400), (40, 461020), (50, 368816), (56, 329300), (70, 263440), (74, 249200), (80, 230510), (89, 207200), (100, 184408), (112, 164650), (140, 131720), (148, 124600), (160, 115255), (175, 105376), (178, 103600), (185, 99680), (200, 92204), (224, 82325), (259, 71200), (280, 65860), (296, 62300), (350, 52688), (356, 51800), (370, 49840), (400, 46102), (445, 41440), (518, 35600), (560, 32930), (592, 31150), (623, 29600), (700, 26344), (712, 25900), (740, 24920), (800, 23051), (890, 20720), (925, 19936), (1036, 17800), (1120, 16465), (1184, 15575), (1246, 14800), (1295, 14240), (1400, 13172), (1424, 12950), (1480, 12460), (1780, 10360), (1850, 9968), (2072, 8900), (2225, 8288), (2492, 7400), (2590, 7120), (2800, 6586), (2848, 6475), (2960, 6230), (3115, 5920), (3293, 5600), (3560, 5180), (3700, 4984), (4144, 4450)]