20266244

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19650556

約数列:

[1, 2, 4, 17, 29, 34, 43, 58, 68, 86, 116, 172, 239, 478, 493, 731, 956, 986, 1247, 1462, 1972, 2494, 2924, 4063, 4988, 6931, 8126, 10277, 13862, 16252, 20554, 21199, 27724, 41108, 42398, 84796, 117827, 174709, 235654, 298033, 349418, 471308, 596066, 698836, 1192132, 5066561, 10133122, 20266244]

約数ペア:

[(1, 20266244), (2, 10133122), (4, 5066561), (17, 1192132), (29, 698836), (34, 596066), (43, 471308), (58, 349418), (68, 298033), (86, 235654), (116, 174709), (172, 117827), (239, 84796), (478, 42398), (493, 41108), (731, 27724), (956, 21199), (986, 20554), (1247, 16252), (1462, 13862), (1972, 10277), (2494, 8126), (2924, 6931), (4063, 4988)]