20210380820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2723771}}^1$

素因数の和:2723840

約数の個数: 48

約数和(自身を含む): 49420119168

約数和(自身を除く): 29209738348

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, 2723771, 5447542, 10895084, 13618855, 19066397, 27237710, 38132794, 54475420, 76265588, 95331985, 144359863, 190663970, 288719726, 381327940, 577439452, 721799315, 1010519041, 1443598630, 2021038082, 2887197260, 4042076164, 5052595205, 10105190410, 20210380820]

約数ペア:

[(1, 20210380820), (2, 10105190410), (4, 5052595205), (5, 4042076164), (7, 2887197260), (10, 2021038082), (14, 1443598630), (20, 1010519041), (28, 721799315), (35, 577439452), (53, 381327940), (70, 288719726), (106, 190663970), (140, 144359863), (212, 95331985), (265, 76265588), (371, 54475420), (530, 38132794), (742, 27237710), (1060, 19066397), (1484, 13618855), (1855, 10895084), (3710, 5447542), (7420, 2723771)]