20918219870

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{457}}^1\times {\mathrm{40507}}^1$

素因数の和:41084

約数の個数: 32

約数和(自身を含む): 38070066528

約数和(自身を除く): 17151846658

約数列:

[1, 2, 5, 10, 113, 226, 457, 565, 914, 1130, 2285, 4570, 40507, 51641, 81014, 103282, 202535, 258205, 405070, 516410, 4577291, 9154582, 18511699, 22886455, 37023398, 45772910, 92558495, 185116990, 2091821987, 4183643974, 10459109935, 20918219870]

約数ペア:

[(1, 20918219870), (2, 10459109935), (5, 4183643974), (10, 2091821987), (113, 185116990), (226, 92558495), (457, 45772910), (565, 37023398), (914, 22886455), (1130, 18511699), (2285, 9154582), (4570, 4577291), (40507, 516410), (51641, 405070), (81014, 258205), (103282, 202535)]