20344190

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{449}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 18147010

約数列:

[1, 2, 5, 10, 23, 46, 115, 197, 230, 394, 449, 898, 985, 1970, 2245, 4490, 4531, 9062, 10327, 20654, 22655, 45310, 51635, 88453, 103270, 176906, 442265, 884530, 2034419, 4068838, 10172095, 20344190]

約数ペア:

[(1, 20344190), (2, 10172095), (5, 4068838), (10, 2034419), (23, 884530), (46, 442265), (115, 176906), (197, 103270), (230, 88453), (394, 51635), (449, 45310), (898, 22655), (985, 20654), (1970, 10327), (2245, 9062), (4490, 4531)]