81232360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{523}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 200335680

約数和(自身を除く): 119103320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 353, 440, 523, 706, 1046, 1412, 1765, 2092, 2615, 2824, 3530, 3883, 4184, 5230, 5753, 7060, 7766, 10460, 11506, 14120, 15532, 19415, 20920, 23012, 28765, 31064, 38830, 46024, 57530, 77660, 115060, 155320, 184619, 230120, 369238, 738476, 923095, 1476952, 1846190, 2030809, 3692380, 4061618, 7384760, 8123236, 10154045, 16246472, 20308090, 40616180, 81232360]

約数ペア:

[(1, 81232360), (2, 40616180), (4, 20308090), (5, 16246472), (8, 10154045), (10, 8123236), (11, 7384760), (20, 4061618), (22, 3692380), (40, 2030809), (44, 1846190), (55, 1476952), (88, 923095), (110, 738476), (220, 369238), (353, 230120), (440, 184619), (523, 155320), (706, 115060), (1046, 77660), (1412, 57530), (1765, 46024), (2092, 38830), (2615, 31064), (2824, 28765), (3530, 23012), (3883, 20920), (4184, 19415), (5230, 15532), (5753, 14120), (7060, 11506), (7766, 10460)]