87877880

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{7019}}^1$

素因数の和:7343

約数の個数: 32

約数和(自身を含む): 198385200

約数和(自身を除く): 110507320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 7019, 12520, 14038, 28076, 35095, 56152, 70190, 140380, 280760, 2196947, 4393894, 8787788, 10984735, 17575576, 21969470, 43938940, 87877880]

約数ペア:

[(1, 87877880), (2, 43938940), (4, 21969470), (5, 17575576), (8, 10984735), (10, 8787788), (20, 4393894), (40, 2196947), (313, 280760), (626, 140380), (1252, 70190), (1565, 56152), (2504, 35095), (3130, 28076), (6260, 14038), (7019, 12520)]