2551120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 6999552

約数和(自身を除く): 4448432

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 223, 260, 286, 440, 446, 520, 572, 715, 880, 892, 1040, 1115, 1144, 1430, 1784, 2230, 2288, 2453, 2860, 2899, 3568, 4460, 4906, 5720, 5798, 8920, 9812, 11440, 11596, 12265, 14495, 17840, 19624, 23192, 24530, 28990, 31889, 39248, 46384, 49060, 57980, 63778, 98120, 115960, 127556, 159445, 196240, 231920, 255112, 318890, 510224, 637780, 1275560, 2551120]

約数ペア:

[(1, 2551120), (2, 1275560), (4, 637780), (5, 510224), (8, 318890), (10, 255112), (11, 231920), (13, 196240), (16, 159445), (20, 127556), (22, 115960), (26, 98120), (40, 63778), (44, 57980), (52, 49060), (55, 46384), (65, 39248), (80, 31889), (88, 28990), (104, 24530), (110, 23192), (130, 19624), (143, 17840), (176, 14495), (208, 12265), (220, 11596), (223, 11440), (260, 9812), (286, 8920), (440, 5798), (446, 5720), (520, 4906), (572, 4460), (715, 3568), (880, 2899), (892, 2860), (1040, 2453), (1115, 2288), (1144, 2230), (1430, 1784)]