87819920

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{11317}}^1$

素因数の和:11427

約数の個数: 40

約数和(自身を含む): 206304504

約数和(自身を除く): 118484584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 11317, 22634, 45268, 56585, 90536, 113170, 181072, 226340, 452680, 905360, 1097749, 2195498, 4390996, 5488745, 8781992, 10977490, 17563984, 21954980, 43909960, 87819920]

約数ペア:

[(1, 87819920), (2, 43909960), (4, 21954980), (5, 17563984), (8, 10977490), (10, 8781992), (16, 5488745), (20, 4390996), (40, 2195498), (80, 1097749), (97, 905360), (194, 452680), (388, 226340), (485, 181072), (776, 113170), (970, 90536), (1552, 56585), (1940, 45268), (3880, 22634), (7760, 11317)]