78911440

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10169}}^1$

素因数の和:10279

約数の個数: 40

約数和(自身を含む): 185378760

約数和(自身を除く): 106467320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 10169, 20338, 40676, 50845, 81352, 101690, 162704, 203380, 406760, 813520, 986393, 1972786, 3945572, 4931965, 7891144, 9863930, 15782288, 19727860, 39455720, 78911440]

約数ペア:

[(1, 78911440), (2, 39455720), (4, 19727860), (5, 15782288), (8, 9863930), (10, 7891144), (16, 4931965), (20, 3945572), (40, 1972786), (80, 986393), (97, 813520), (194, 406760), (388, 203380), (485, 162704), (776, 101690), (970, 81352), (1552, 50845), (1940, 40676), (3880, 20338), (7760, 10169)]