20151910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2137}}^1$

素因数の和:2208

約数の個数: 32

約数和(自身を含む): 38791872

約数和(自身を除く): 18639962

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 115, 205, 230, 410, 943, 1886, 2137, 4274, 4715, 9430, 10685, 21370, 49151, 87617, 98302, 175234, 245755, 438085, 491510, 876170, 2015191, 4030382, 10075955, 20151910]

約数ペア:

[(1, 20151910), (2, 10075955), (5, 4030382), (10, 2015191), (23, 876170), (41, 491510), (46, 438085), (82, 245755), (115, 175234), (205, 98302), (230, 87617), (410, 49151), (943, 21370), (1886, 10685), (2137, 9430), (4274, 4715)]