81980570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{13159}}^1$

素因数の和:13262

約数の個数: 32

約数和(自身を含む): 170553600

約数和(自身を除く): 88573030

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 6230, 13159, 26318, 65795, 92113, 131590, 184226, 460565, 921130, 1171151, 2342302, 5855755, 8198057, 11711510, 16396114, 40990285, 81980570]

約数ペア:

[(1, 81980570), (2, 40990285), (5, 16396114), (7, 11711510), (10, 8198057), (14, 5855755), (35, 2342302), (70, 1171151), (89, 921130), (178, 460565), (445, 184226), (623, 131590), (890, 92113), (1246, 65795), (3115, 26318), (6230, 13159)]