8102020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 17967600

約数和(自身を除く): 9865580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 229, 244, 290, 305, 458, 580, 610, 916, 1145, 1220, 1769, 2290, 3538, 4580, 6641, 7076, 8845, 13282, 13969, 17690, 26564, 27938, 33205, 35380, 55876, 66410, 69845, 132820, 139690, 279380, 405101, 810202, 1620404, 2025505, 4051010, 8102020]

約数ペア:

[(1, 8102020), (2, 4051010), (4, 2025505), (5, 1620404), (10, 810202), (20, 405101), (29, 279380), (58, 139690), (61, 132820), (116, 69845), (122, 66410), (145, 55876), (229, 35380), (244, 33205), (290, 27938), (305, 26564), (458, 17690), (580, 13969), (610, 13282), (916, 8845), (1145, 7076), (1220, 6641), (1769, 4580), (2290, 3538)]