20657070

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32789}}^1$

素因数の和:32809

約数の個数: 48

約数和(自身を含む): 61382880

約数和(自身を除く): 40725810

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32789, 65578, 98367, 163945, 196734, 229523, 295101, 327890, 459046, 491835, 590202, 688569, 983670, 1147615, 1377138, 1475505, 2065707, 2295230, 2951010, 3442845, 4131414, 6885690, 10328535, 20657070]

約数ペア:

[(1, 20657070), (2, 10328535), (3, 6885690), (5, 4131414), (6, 3442845), (7, 2951010), (9, 2295230), (10, 2065707), (14, 1475505), (15, 1377138), (18, 1147615), (21, 983670), (30, 688569), (35, 590202), (42, 491835), (45, 459046), (63, 327890), (70, 295101), (90, 229523), (105, 196734), (126, 163945), (210, 98367), (315, 65578), (630, 32789)]