20123530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4049}}^1$

素因数の和:4134

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 21866870

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4049, 4970, 8098, 20245, 28343, 40490, 56686, 141715, 283430, 287479, 574958, 1437395, 2012353, 2874790, 4024706, 10061765, 20123530]

約数ペア:

[(1, 20123530), (2, 10061765), (5, 4024706), (7, 2874790), (10, 2012353), (14, 1437395), (35, 574958), (70, 287479), (71, 283430), (142, 141715), (355, 56686), (497, 40490), (710, 28343), (994, 20245), (2485, 8098), (4049, 4970)]