90401440

素因数分解:

$2^5\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1409}}^1$

素因数の和:1825

約数の個数: 48

約数和(自身を含む): 214257960

約数和(自身を除く): 123856520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 401, 802, 1409, 1604, 2005, 2818, 3208, 4010, 5636, 6416, 7045, 8020, 11272, 12832, 14090, 16040, 22544, 28180, 32080, 45088, 56360, 64160, 112720, 225440, 565009, 1130018, 2260036, 2825045, 4520072, 5650090, 9040144, 11300180, 18080288, 22600360, 45200720, 90401440]

約数ペア:

[(1, 90401440), (2, 45200720), (4, 22600360), (5, 18080288), (8, 11300180), (10, 9040144), (16, 5650090), (20, 4520072), (32, 2825045), (40, 2260036), (80, 1130018), (160, 565009), (401, 225440), (802, 112720), (1409, 64160), (1604, 56360), (2005, 45088), (2818, 32080), (3208, 28180), (4010, 22544), (5636, 16040), (6416, 14090), (7045, 12832), (8020, 11272)]