80859200

素因数分解:

$2^6\times 5^2\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:640

約数の個数: 84

約数和(自身を含む): 201401172

約数和(自身を除く): 120541972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 160, 194, 200, 320, 388, 400, 485, 521, 776, 800, 970, 1042, 1552, 1600, 1940, 2084, 2425, 2605, 3104, 3880, 4168, 4850, 5210, 6208, 7760, 8336, 9700, 10420, 13025, 15520, 16672, 19400, 20840, 26050, 31040, 33344, 38800, 41680, 50537, 52100, 77600, 83360, 101074, 104200, 155200, 166720, 202148, 208400, 252685, 404296, 416800, 505370, 808592, 833600, 1010740, 1263425, 1617184, 2021480, 2526850, 3234368, 4042960, 5053700, 8085920, 10107400, 16171840, 20214800, 40429600, 80859200]

約数ペア:

[(1, 80859200), (2, 40429600), (4, 20214800), (5, 16171840), (8, 10107400), (10, 8085920), (16, 5053700), (20, 4042960), (25, 3234368), (32, 2526850), (40, 2021480), (50, 1617184), (64, 1263425), (80, 1010740), (97, 833600), (100, 808592), (160, 505370), (194, 416800), (200, 404296), (320, 252685), (388, 208400), (400, 202148), (485, 166720), (521, 155200), (776, 104200), (800, 101074), (970, 83360), (1042, 77600), (1552, 52100), (1600, 50537), (1940, 41680), (2084, 38800), (2425, 33344), (2605, 31040), (3104, 26050), (3880, 20840), (4168, 19400), (4850, 16672), (5210, 15520), (6208, 13025), (7760, 10420), (8336, 9700)]