129898120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 334886400

約数和(自身を除く): 204988280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 79, 88, 101, 110, 148, 158, 185, 202, 220, 296, 316, 370, 395, 404, 407, 440, 505, 632, 740, 790, 808, 814, 869, 1010, 1111, 1480, 1580, 1628, 1738, 2020, 2035, 2222, 2923, 3160, 3256, 3476, 3737, 4040, 4070, 4345, 4444, 5555, 5846, 6952, 7474, 7979, 8140, 8690, 8888, 11110, 11692, 14615, 14948, 15958, 16280, 17380, 18685, 22220, 23384, 29230, 29896, 31916, 32153, 34760, 37370, 39895, 41107, 44440, 58460, 63832, 64306, 74740, 79790, 82214, 87769, 116920, 128612, 149480, 159580, 160765, 164428, 175538, 205535, 257224, 295223, 319160, 321530, 328856, 351076, 411070, 438845, 590446, 643060, 702152, 822140, 877690, 1180892, 1286120, 1476115, 1644280, 1755380, 2361784, 2952230, 3247453, 3510760, 5904460, 6494906, 11808920, 12989812, 16237265, 25979624, 32474530, 64949060, 129898120]

約数ペア:

[(1, 129898120), (2, 64949060), (4, 32474530), (5, 25979624), (8, 16237265), (10, 12989812), (11, 11808920), (20, 6494906), (22, 5904460), (37, 3510760), (40, 3247453), (44, 2952230), (55, 2361784), (74, 1755380), (79, 1644280), (88, 1476115), (101, 1286120), (110, 1180892), (148, 877690), (158, 822140), (185, 702152), (202, 643060), (220, 590446), (296, 438845), (316, 411070), (370, 351076), (395, 328856), (404, 321530), (407, 319160), (440, 295223), (505, 257224), (632, 205535), (740, 175538), (790, 164428), (808, 160765), (814, 159580), (869, 149480), (1010, 128612), (1111, 116920), (1480, 87769), (1580, 82214), (1628, 79790), (1738, 74740), (2020, 64306), (2035, 63832), (2222, 58460), (2923, 44440), (3160, 41107), (3256, 39895), (3476, 37370), (3737, 34760), (4040, 32153), (4070, 31916), (4345, 29896), (4444, 29230), (5555, 23384), (5846, 22220), (6952, 18685), (7474, 17380), (7979, 16280), (8140, 15958), (8690, 14948), (8888, 14615), (11110, 11692)]