258436256

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{621241}}^1$

素因数の和:621264

約数の個数: 24

約数和(自身を含む): 547935444

約数和(自身を除く): 289499188

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 621241, 1242482, 2484964, 4969928, 8076133, 9939856, 16152266, 19879712, 32304532, 64609064, 129218128, 258436256]

約数ペア:

[(1, 258436256), (2, 129218128), (4, 64609064), (8, 32304532), (13, 19879712), (16, 16152266), (26, 9939856), (32, 8076133), (52, 4969928), (104, 2484964), (208, 1242482), (416, 621241)]