80843680

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5209}}^1$

素因数の和:5321

約数の個数: 48

約数和(自身を含む): 192999240

約数和(自身を除く): 112155560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 5209, 7760, 10418, 15520, 20836, 26045, 41672, 52090, 83344, 104180, 166688, 208360, 416720, 505273, 833440, 1010546, 2021092, 2526365, 4042184, 5052730, 8084368, 10105460, 16168736, 20210920, 40421840, 80843680]

約数ペア:

[(1, 80843680), (2, 40421840), (4, 20210920), (5, 16168736), (8, 10105460), (10, 8084368), (16, 5052730), (20, 4042184), (32, 2526365), (40, 2021092), (80, 1010546), (97, 833440), (160, 505273), (194, 416720), (388, 208360), (485, 166688), (776, 104180), (970, 83344), (1552, 52090), (1940, 41672), (3104, 26045), (3880, 20836), (5209, 15520), (7760, 10418)]