90729280

素因数分解:

$2^6\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1009}}^1$

素因数の和:1307

約数の個数: 56

約数和(自身を含む): 217032840

約数和(自身を除く): 126303560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 281, 320, 562, 1009, 1124, 1405, 2018, 2248, 2810, 4036, 4496, 5045, 5620, 8072, 8992, 10090, 11240, 16144, 17984, 20180, 22480, 32288, 40360, 44960, 64576, 80720, 89920, 161440, 283529, 322880, 567058, 1134116, 1417645, 2268232, 2835290, 4536464, 5670580, 9072928, 11341160, 18145856, 22682320, 45364640, 90729280]

約数ペア:

[(1, 90729280), (2, 45364640), (4, 22682320), (5, 18145856), (8, 11341160), (10, 9072928), (16, 5670580), (20, 4536464), (32, 2835290), (40, 2268232), (64, 1417645), (80, 1134116), (160, 567058), (281, 322880), (320, 283529), (562, 161440), (1009, 89920), (1124, 80720), (1405, 64576), (2018, 44960), (2248, 40360), (2810, 32288), (4036, 22480), (4496, 20180), (5045, 17984), (5620, 16144), (8072, 11240), (8992, 10090)]