20645328

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 59228352

約数和(自身を除く): 38583024

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 122, 132, 176, 183, 244, 264, 366, 488, 528, 641, 671, 732, 976, 1282, 1342, 1464, 1923, 2013, 2564, 2684, 2928, 3846, 4026, 5128, 5368, 7051, 7692, 8052, 10256, 10736, 14102, 15384, 16104, 21153, 28204, 30768, 32208, 39101, 42306, 56408, 78202, 84612, 112816, 117303, 156404, 169224, 234606, 312808, 338448, 430111, 469212, 625616, 860222, 938424, 1290333, 1720444, 1876848, 2580666, 3440888, 5161332, 6881776, 10322664, 20645328]

約数ペア:

[(1, 20645328), (2, 10322664), (3, 6881776), (4, 5161332), (6, 3440888), (8, 2580666), (11, 1876848), (12, 1720444), (16, 1290333), (22, 938424), (24, 860222), (33, 625616), (44, 469212), (48, 430111), (61, 338448), (66, 312808), (88, 234606), (122, 169224), (132, 156404), (176, 117303), (183, 112816), (244, 84612), (264, 78202), (366, 56408), (488, 42306), (528, 39101), (641, 32208), (671, 30768), (732, 28204), (976, 21153), (1282, 16104), (1342, 15384), (1464, 14102), (1923, 10736), (2013, 10256), (2564, 8052), (2684, 7692), (2928, 7051), (3846, 5368), (4026, 5128)]