11891290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 22394880

約数和(自身を除く): 10503590

約数列:

[1, 2, 5, 10, 31, 62, 89, 155, 178, 310, 431, 445, 862, 890, 2155, 2759, 4310, 5518, 13361, 13795, 26722, 27590, 38359, 66805, 76718, 133610, 191795, 383590, 1189129, 2378258, 5945645, 11891290]

約数ペア:

[(1, 11891290), (2, 5945645), (5, 2378258), (10, 1189129), (31, 383590), (62, 191795), (89, 133610), (155, 76718), (178, 66805), (310, 38359), (431, 27590), (445, 26722), (862, 13795), (890, 13361), (2155, 5518), (2759, 4310)]