2591990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 5028480

約数和(自身を除く): 2436490

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 193, 386, 395, 790, 965, 1343, 1930, 2686, 3281, 6562, 6715, 13430, 15247, 16405, 30494, 32810, 76235, 152470, 259199, 518398, 1295995, 2591990]

約数ペア:

[(1, 2591990), (2, 1295995), (5, 518398), (10, 259199), (17, 152470), (34, 76235), (79, 32810), (85, 30494), (158, 16405), (170, 15247), (193, 13430), (386, 6715), (395, 6562), (790, 3281), (965, 2686), (1343, 1930)]