90784240

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{11699}}^1$

素因数の和:11809

約数の個数: 40

約数和(自身を含む): 213267600

約数和(自身を除く): 122483360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 11699, 23398, 46796, 58495, 93592, 116990, 187184, 233980, 467960, 935920, 1134803, 2269606, 4539212, 5674015, 9078424, 11348030, 18156848, 22696060, 45392120, 90784240]

約数ペア:

[(1, 90784240), (2, 45392120), (4, 22696060), (5, 18156848), (8, 11348030), (10, 9078424), (16, 5674015), (20, 4539212), (40, 2269606), (80, 1134803), (97, 935920), (194, 467960), (388, 233980), (485, 187184), (776, 116990), (970, 93592), (1552, 58495), (1940, 46796), (3880, 23398), (7760, 11699)]