2102820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 5963328

約数和(自身を除く): 3860508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 347, 404, 505, 606, 694, 1010, 1041, 1212, 1388, 1515, 1735, 2020, 2082, 3030, 3470, 4164, 5205, 6060, 6940, 10410, 20820, 35047, 70094, 105141, 140188, 175235, 210282, 350470, 420564, 525705, 700940, 1051410, 2102820]

約数ペア:

[(1, 2102820), (2, 1051410), (3, 700940), (4, 525705), (5, 420564), (6, 350470), (10, 210282), (12, 175235), (15, 140188), (20, 105141), (30, 70094), (60, 35047), (101, 20820), (202, 10410), (303, 6940), (347, 6060), (404, 5205), (505, 4164), (606, 3470), (694, 3030), (1010, 2082), (1041, 2020), (1212, 1735), (1388, 1515)]