171994140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1009}}^1$

素因数の和:1971

約数の個数: 72

約数和(自身を含む): 522784080

約数和(自身を除く): 350789940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 947, 1009, 1894, 2018, 2841, 3027, 3788, 4036, 4735, 5045, 5682, 6054, 8523, 9081, 9470, 10090, 11364, 12108, 14205, 15135, 17046, 18162, 18940, 20180, 28410, 30270, 34092, 36324, 42615, 45405, 56820, 60540, 85230, 90810, 170460, 181620, 955523, 1911046, 2866569, 3822092, 4777615, 5733138, 8599707, 9555230, 11466276, 14332845, 17199414, 19110460, 28665690, 34398828, 42998535, 57331380, 85997070, 171994140]

約数ペア:

[(1, 171994140), (2, 85997070), (3, 57331380), (4, 42998535), (5, 34398828), (6, 28665690), (9, 19110460), (10, 17199414), (12, 14332845), (15, 11466276), (18, 9555230), (20, 8599707), (30, 5733138), (36, 4777615), (45, 3822092), (60, 2866569), (90, 1911046), (180, 955523), (947, 181620), (1009, 170460), (1894, 90810), (2018, 85230), (2841, 60540), (3027, 56820), (3788, 45405), (4036, 42615), (4735, 36324), (5045, 34092), (5682, 30270), (6054, 28410), (8523, 20180), (9081, 18940), (9470, 18162), (10090, 17046), (11364, 15135), (12108, 14205)]