1286120

素因数分解:

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

素因数の和:138

約数の個数: 64

約数和(自身を含む): 3283200

約数和(自身を除く): 1997080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 79, 88, 110, 148, 158, 185, 220, 296, 316, 370, 395, 407, 440, 632, 740, 790, 814, 869, 1480, 1580, 1628, 1738, 2035, 2923, 3160, 3256, 3476, 4070, 4345, 5846, 6952, 8140, 8690, 11692, 14615, 16280, 17380, 23384, 29230, 32153, 34760, 58460, 64306, 116920, 128612, 160765, 257224, 321530, 643060, 1286120]

約数ペア:

[(1, 1286120), (2, 643060), (4, 321530), (5, 257224), (8, 160765), (10, 128612), (11, 116920), (20, 64306), (22, 58460), (37, 34760), (40, 32153), (44, 29230), (55, 23384), (74, 17380), (79, 16280), (88, 14615), (110, 11692), (148, 8690), (158, 8140), (185, 6952), (220, 5846), (296, 4345), (316, 4070), (370, 3476), (395, 3256), (407, 3160), (440, 2923), (632, 2035), (740, 1738), (790, 1628), (814, 1580), (869, 1480)]