20453178

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 24543942

約数列:

[1, 2, 3, 6, 29, 41, 47, 58, 61, 82, 87, 94, 122, 123, 141, 174, 183, 246, 282, 366, 1189, 1363, 1769, 1927, 2378, 2501, 2726, 2867, 3538, 3567, 3854, 4089, 5002, 5307, 5734, 5781, 7134, 7503, 8178, 8601, 10614, 11562, 15006, 17202, 55883, 72529, 83143, 111766, 117547, 145058, 166286, 167649, 217587, 235094, 249429, 335298, 352641, 435174, 498858, 705282, 3408863, 6817726, 10226589, 20453178]

約数ペア:

[(1, 20453178), (2, 10226589), (3, 6817726), (6, 3408863), (29, 705282), (41, 498858), (47, 435174), (58, 352641), (61, 335298), (82, 249429), (87, 235094), (94, 217587), (122, 167649), (123, 166286), (141, 145058), (174, 117547), (183, 111766), (246, 83143), (282, 72529), (366, 55883), (1189, 17202), (1363, 15006), (1769, 11562), (1927, 10614), (2378, 8601), (2501, 8178), (2726, 7503), (2867, 7134), (3538, 5781), (3567, 5734), (3854, 5307), (4089, 5002)]