81642420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453569}}^1$

素因数の和:453584

約数の個数: 36

約数和(自身を含む): 247649220

約数和(自身を除く): 166006800

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453569, 907138, 1360707, 1814276, 2267845, 2721414, 4082121, 4535690, 5442828, 6803535, 8164242, 9071380, 13607070, 16328484, 20410605, 27214140, 40821210, 81642420]

約数ペア:

[(1, 81642420), (2, 40821210), (3, 27214140), (4, 20410605), (5, 16328484), (6, 13607070), (9, 9071380), (10, 8164242), (12, 6803535), (15, 5442828), (18, 4535690), (20, 4082121), (30, 2721414), (36, 2267845), (45, 1814276), (60, 1360707), (90, 907138), (180, 453569)]