2019020320

素因数分解:

$2^5\times 5^1\times {\mathrm{409}}^1\times {\mathrm{30853}}^1$

素因数の和:31277

約数の個数: 48

約数和(自身を含む): 4781752920

約数和(自身を除く): 2762732600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 13088, 16360, 30853, 32720, 61706, 65440, 123412, 154265, 246824, 308530, 493648, 617060, 987296, 1234120, 2468240, 4936480, 12618877, 25237754, 50475508, 63094385, 100951016, 126188770, 201902032, 252377540, 403804064, 504755080, 1009510160, 2019020320]

約数ペア:

[(1, 2019020320), (2, 1009510160), (4, 504755080), (5, 403804064), (8, 252377540), (10, 201902032), (16, 126188770), (20, 100951016), (32, 63094385), (40, 50475508), (80, 25237754), (160, 12618877), (409, 4936480), (818, 2468240), (1636, 1234120), (2045, 987296), (3272, 617060), (4090, 493648), (6544, 308530), (8180, 246824), (13088, 154265), (16360, 123412), (30853, 65440), (32720, 61706)]