28688720

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3697}}^1$

素因数の和:3807

約数の個数: 40

約数和(自身を含む): 67407144

約数和(自身を除く): 38718424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3697, 3880, 7394, 7760, 14788, 18485, 29576, 36970, 59152, 73940, 147880, 295760, 358609, 717218, 1434436, 1793045, 2868872, 3586090, 5737744, 7172180, 14344360, 28688720]

約数ペア:

[(1, 28688720), (2, 14344360), (4, 7172180), (5, 5737744), (8, 3586090), (10, 2868872), (16, 1793045), (20, 1434436), (40, 717218), (80, 358609), (97, 295760), (194, 147880), (388, 73940), (485, 59152), (776, 36970), (970, 29576), (1552, 18485), (1940, 14788), (3697, 7760), (3880, 7394)]