20080728

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{2129}}^1$

素因数の和:2272

約数の個数: 48

約数和(自身を含む): 54826200

約数和(自身を除く): 34745472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2129, 2358, 3144, 4258, 4716, 6387, 8516, 9432, 12774, 17032, 19161, 25548, 38322, 51096, 76644, 153288, 278899, 557798, 836697, 1115596, 1673394, 2231192, 2510091, 3346788, 5020182, 6693576, 10040364, 20080728]

約数ペア:

[(1, 20080728), (2, 10040364), (3, 6693576), (4, 5020182), (6, 3346788), (8, 2510091), (9, 2231192), (12, 1673394), (18, 1115596), (24, 836697), (36, 557798), (72, 278899), (131, 153288), (262, 76644), (393, 51096), (524, 38322), (786, 25548), (1048, 19161), (1179, 17032), (1572, 12774), (2129, 9432), (2358, 8516), (3144, 6387), (4258, 4716)]