2021067020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{272381}}^1$

素因数の和:272450

約数の個数: 48

約数和(自身を含む): 4942099008

約数和(自身を除く): 2921031988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 272381, 544762, 1089524, 1361905, 1906667, 2723810, 3813334, 5447620, 7626668, 9533335, 14436193, 19066670, 28872386, 38133340, 57744772, 72180965, 101053351, 144361930, 202106702, 288723860, 404213404, 505266755, 1010533510, 2021067020]

約数ペア:

[(1, 2021067020), (2, 1010533510), (4, 505266755), (5, 404213404), (7, 288723860), (10, 202106702), (14, 144361930), (20, 101053351), (28, 72180965), (35, 57744772), (53, 38133340), (70, 28872386), (106, 19066670), (140, 14436193), (212, 9533335), (265, 7626668), (371, 5447620), (530, 3813334), (742, 2723810), (1060, 1906667), (1484, 1361905), (1855, 1089524), (3710, 544762), (7420, 272381)]