20440144

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:347

約数の個数: 40

約数和(自身を含む): 40751360

約数和(自身を除く): 20311216

約数列:

[1, 2, 4, 8, 16, 79, 103, 157, 158, 206, 314, 316, 412, 628, 632, 824, 1256, 1264, 1648, 2512, 8137, 12403, 16171, 16274, 24806, 32342, 32548, 49612, 64684, 65096, 99224, 129368, 130192, 198448, 258736, 1277509, 2555018, 5110036, 10220072, 20440144]

約数ペア:

[(1, 20440144), (2, 10220072), (4, 5110036), (8, 2555018), (16, 1277509), (79, 258736), (103, 198448), (157, 130192), (158, 129368), (206, 99224), (314, 65096), (316, 64684), (412, 49612), (628, 32548), (632, 32342), (824, 24806), (1256, 16274), (1264, 16171), (1648, 12403), (2512, 8137)]