18820210

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1741}}^1$

素因数の和:1818

約数の個数: 32

約数和(自身を含む): 36122112

約数和(自身を除く): 17301902

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 1741, 2162, 3482, 5405, 8705, 10810, 17410, 40043, 80086, 81827, 163654, 200215, 400430, 409135, 818270, 1882021, 3764042, 9410105, 18820210]

約数ペア:

[(1, 18820210), (2, 9410105), (5, 3764042), (10, 1882021), (23, 818270), (46, 409135), (47, 400430), (94, 200215), (115, 163654), (230, 81827), (235, 80086), (470, 40043), (1081, 17410), (1741, 10810), (2162, 8705), (3482, 5405)]