87680240

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{11299}}^1$

素因数の和:11409

約数の個数: 40

約数和(自身を含む): 205976400

約数和(自身を除く): 118296160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 11299, 22598, 45196, 56495, 90392, 112990, 180784, 225980, 451960, 903920, 1096003, 2192006, 4384012, 5480015, 8768024, 10960030, 17536048, 21920060, 43840120, 87680240]

約数ペア:

[(1, 87680240), (2, 43840120), (4, 21920060), (5, 17536048), (8, 10960030), (10, 8768024), (16, 5480015), (20, 4384012), (40, 2192006), (80, 1096003), (97, 903920), (194, 451960), (388, 225980), (485, 180784), (776, 112990), (970, 90392), (1552, 56495), (1940, 45196), (3880, 22598), (7760, 11299)]