20178524

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 39207168

約数和(自身を除く): 19028644

約数列:

[1, 2, 4, 17, 34, 43, 67, 68, 86, 103, 134, 172, 206, 268, 412, 731, 1139, 1462, 1751, 2278, 2881, 2924, 3502, 4429, 4556, 5762, 6901, 7004, 8858, 11524, 13802, 17716, 27604, 48977, 75293, 97954, 117317, 150586, 195908, 234634, 296743, 301172, 469268, 593486, 1186972, 5044631, 10089262, 20178524]

約数ペア:

[(1, 20178524), (2, 10089262), (4, 5044631), (17, 1186972), (34, 593486), (43, 469268), (67, 301172), (68, 296743), (86, 234634), (103, 195908), (134, 150586), (172, 117317), (206, 97954), (268, 75293), (412, 48977), (731, 27604), (1139, 17716), (1462, 13802), (1751, 11524), (2278, 8858), (2881, 7004), (2924, 6901), (3502, 5762), (4429, 4556)]