20145190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{643}}^1$

素因数の和:904

約数の個数: 32

約数和(自身を含む): 39273696

約数和(自身を除く): 19128506

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 241, 482, 643, 1205, 1286, 2410, 3133, 3215, 6266, 6430, 8359, 15665, 16718, 31330, 41795, 83590, 154963, 309926, 774815, 1549630, 2014519, 4029038, 10072595, 20145190]

約数ペア:

[(1, 20145190), (2, 10072595), (5, 4029038), (10, 2014519), (13, 1549630), (26, 774815), (65, 309926), (130, 154963), (241, 83590), (482, 41795), (643, 31330), (1205, 16718), (1286, 15665), (2410, 8359), (3133, 6430), (3215, 6266)]