201440720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1777}}^1$

素因数の和:1912

約数の個数: 80

約数和(自身を含む): 509290320

約数和(自身を除く): 307849600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 208, 218, 260, 436, 520, 545, 872, 1040, 1090, 1417, 1744, 1777, 2180, 2834, 3554, 4360, 5668, 7085, 7108, 8720, 8885, 11336, 14170, 14216, 17770, 22672, 23101, 28340, 28432, 35540, 46202, 56680, 71080, 92404, 113360, 115505, 142160, 184808, 193693, 231010, 369616, 387386, 462020, 774772, 924040, 968465, 1549544, 1848080, 1936930, 2518009, 3099088, 3873860, 5036018, 7747720, 10072036, 12590045, 15495440, 20144072, 25180090, 40288144, 50360180, 100720360, 201440720]

約数ペア:

[(1, 201440720), (2, 100720360), (4, 50360180), (5, 40288144), (8, 25180090), (10, 20144072), (13, 15495440), (16, 12590045), (20, 10072036), (26, 7747720), (40, 5036018), (52, 3873860), (65, 3099088), (80, 2518009), (104, 1936930), (109, 1848080), (130, 1549544), (208, 968465), (218, 924040), (260, 774772), (436, 462020), (520, 387386), (545, 369616), (872, 231010), (1040, 193693), (1090, 184808), (1417, 142160), (1744, 115505), (1777, 113360), (2180, 92404), (2834, 71080), (3554, 56680), (4360, 46202), (5668, 35540), (7085, 28432), (7108, 28340), (8720, 23101), (8885, 22672), (11336, 17770), (14170, 14216)]