68678800

素因数分解:

$2^4\times 5^2\times {\mathrm{171697}}^1$

素因数の和:171715

約数の個数: 30

約数和(自身を含む): 165001778

約数和(自身を除く): 96322978

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 171697, 343394, 686788, 858485, 1373576, 1716970, 2747152, 3433940, 4292425, 6867880, 8584850, 13735760, 17169700, 34339400, 68678800]

約数ペア:

[(1, 68678800), (2, 34339400), (4, 17169700), (5, 13735760), (8, 8584850), (10, 6867880), (16, 4292425), (20, 3433940), (25, 2747152), (40, 1716970), (50, 1373576), (80, 858485), (100, 686788), (200, 343394), (400, 171697)]