161640800

素因数分解:

$2^5\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2083}}^1$

素因数の和:2200

約数の個数: 72

約数和(自身を含む): 398865096

約数和(自身を除く): 237224296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 97, 100, 160, 194, 200, 388, 400, 485, 776, 800, 970, 1552, 1940, 2083, 2425, 3104, 3880, 4166, 4850, 7760, 8332, 9700, 10415, 15520, 16664, 19400, 20830, 33328, 38800, 41660, 52075, 66656, 77600, 83320, 104150, 166640, 202051, 208300, 333280, 404102, 416600, 808204, 833200, 1010255, 1616408, 1666400, 2020510, 3232816, 4041020, 5051275, 6465632, 8082040, 10102550, 16164080, 20205100, 32328160, 40410200, 80820400, 161640800]

約数ペア:

[(1, 161640800), (2, 80820400), (4, 40410200), (5, 32328160), (8, 20205100), (10, 16164080), (16, 10102550), (20, 8082040), (25, 6465632), (32, 5051275), (40, 4041020), (50, 3232816), (80, 2020510), (97, 1666400), (100, 1616408), (160, 1010255), (194, 833200), (200, 808204), (388, 416600), (400, 404102), (485, 333280), (776, 208300), (800, 202051), (970, 166640), (1552, 104150), (1940, 83320), (2083, 77600), (2425, 66656), (3104, 52075), (3880, 41660), (4166, 38800), (4850, 33328), (7760, 20830), (8332, 19400), (9700, 16664), (10415, 15520)]