17860420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 40134528

約数和(自身を除く): 22274108

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 947, 1886, 1894, 3772, 3788, 4715, 4735, 9430, 9470, 18860, 18940, 21781, 38827, 43562, 77654, 87124, 108905, 155308, 194135, 217810, 388270, 435620, 776540, 893021, 1786042, 3572084, 4465105, 8930210, 17860420]

約数ペア:

[(1, 17860420), (2, 8930210), (4, 4465105), (5, 3572084), (10, 1786042), (20, 893021), (23, 776540), (41, 435620), (46, 388270), (82, 217810), (92, 194135), (115, 155308), (164, 108905), (205, 87124), (230, 77654), (410, 43562), (460, 38827), (820, 21781), (943, 18940), (947, 18860), (1886, 9470), (1894, 9430), (3772, 4735), (3788, 4715)]