128472020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1\times {\mathrm{761}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 282659328

約数和(自身を除く): 154187308

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 367, 460, 734, 761, 1468, 1522, 1835, 3044, 3670, 3805, 7340, 7610, 8441, 15220, 16882, 17503, 33764, 35006, 42205, 70012, 84410, 87515, 168820, 175030, 279287, 350060, 558574, 1117148, 1396435, 2792870, 5585740, 6423601, 12847202, 25694404, 32118005, 64236010, 128472020]

約数ペア:

[(1, 128472020), (2, 64236010), (4, 32118005), (5, 25694404), (10, 12847202), (20, 6423601), (23, 5585740), (46, 2792870), (92, 1396435), (115, 1117148), (230, 558574), (367, 350060), (460, 279287), (734, 175030), (761, 168820), (1468, 87515), (1522, 84410), (1835, 70012), (3044, 42205), (3670, 35006), (3805, 33764), (7340, 17503), (7610, 16882), (8441, 15220)]