81118830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{207997}}^1$

素因数の和:208020

約数の個数: 32

約数和(自身を含む): 209661984

約数和(自身を除く): 128543154

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 207997, 415994, 623991, 1039985, 1247982, 2079970, 2703961, 3119955, 5407922, 6239910, 8111883, 13519805, 16223766, 27039610, 40559415, 81118830]

約数ペア:

[(1, 81118830), (2, 40559415), (3, 27039610), (5, 16223766), (6, 13519805), (10, 8111883), (13, 6239910), (15, 5407922), (26, 3119955), (30, 2703961), (39, 2079970), (65, 1247982), (78, 1039985), (130, 623991), (195, 415994), (390, 207997)]