128439724

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1\times {\mathrm{431}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 267079680

約数和(自身を除く): 138639956

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 367, 406, 431, 734, 812, 862, 1468, 1724, 2569, 3017, 5138, 6034, 10276, 10643, 12068, 12499, 21286, 24998, 42572, 49996, 74501, 87493, 149002, 158177, 174986, 298004, 316354, 349972, 632708, 1107239, 2214478, 4428956, 4587133, 9174266, 18348532, 32109931, 64219862, 128439724]

約数ペア:

[(1, 128439724), (2, 64219862), (4, 32109931), (7, 18348532), (14, 9174266), (28, 4587133), (29, 4428956), (58, 2214478), (116, 1107239), (203, 632708), (367, 349972), (406, 316354), (431, 298004), (734, 174986), (812, 158177), (862, 149002), (1468, 87493), (1724, 74501), (2569, 49996), (3017, 42572), (5138, 24998), (6034, 21286), (10276, 12499), (10643, 12068)]