161608870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 311078880

約数和(自身を除く): 149470010

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 361, 445, 503, 722, 890, 1006, 1691, 1805, 2515, 3382, 3610, 5030, 8455, 9557, 16910, 19114, 32129, 44767, 47785, 64258, 89534, 95570, 160645, 181583, 223835, 321290, 363166, 447670, 850573, 907915, 1701146, 1815830, 4252865, 8505730, 16160887, 32321774, 80804435, 161608870]

約数ペア:

[(1, 161608870), (2, 80804435), (5, 32321774), (10, 16160887), (19, 8505730), (38, 4252865), (89, 1815830), (95, 1701146), (178, 907915), (190, 850573), (361, 447670), (445, 363166), (503, 321290), (722, 223835), (890, 181583), (1006, 160645), (1691, 95570), (1805, 89534), (2515, 64258), (3382, 47785), (3610, 44767), (5030, 32129), (8455, 19114), (9557, 16910)]