399604612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{449}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 775656000

約数和(自身を除く): 376051388

約数列:

[1, 2, 4, 11, 22, 44, 113, 179, 226, 358, 449, 452, 716, 898, 1243, 1796, 1969, 2486, 3938, 4939, 4972, 7876, 9878, 19756, 20227, 40454, 50737, 80371, 80908, 101474, 160742, 202948, 222497, 321484, 444994, 558107, 884081, 889988, 1116214, 1768162, 2232428, 3536324, 9081923, 18163846, 36327692, 99901153, 199802306, 399604612]

約数ペア:

[(1, 399604612), (2, 199802306), (4, 99901153), (11, 36327692), (22, 18163846), (44, 9081923), (113, 3536324), (179, 2232428), (226, 1768162), (358, 1116214), (449, 889988), (452, 884081), (716, 558107), (898, 444994), (1243, 321484), (1796, 222497), (1969, 202948), (2486, 160742), (3938, 101474), (4939, 80908), (4972, 80371), (7876, 50737), (9878, 40454), (19756, 20227)]