87021520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57251}}^1$

素因数の和:57283

約数の個数: 40

約数和(自身を含む): 212977440

約数和(自身を除く): 125955920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 57251, 114502, 229004, 286255, 458008, 572510, 916016, 1087769, 1145020, 2175538, 2290040, 4351076, 4580080, 5438845, 8702152, 10877690, 17404304, 21755380, 43510760, 87021520]

約数ペア:

[(1, 87021520), (2, 43510760), (4, 21755380), (5, 17404304), (8, 10877690), (10, 8702152), (16, 5438845), (19, 4580080), (20, 4351076), (38, 2290040), (40, 2175538), (76, 1145020), (80, 1087769), (95, 916016), (152, 572510), (190, 458008), (304, 286255), (380, 229004), (760, 114502), (1520, 57251)]