128040250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{39397}}^1$

素因数の和:39427

約数の個数: 32

約数和(自身を含む): 258135696

約数和(自身を除く): 130095446

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 39397, 78794, 196985, 393970, 512161, 984925, 1024322, 1969850, 2560805, 4924625, 5121610, 9849250, 12804025, 25608050, 64020125, 128040250]

約数ペア:

[(1, 128040250), (2, 64020125), (5, 25608050), (10, 12804025), (13, 9849250), (25, 5121610), (26, 4924625), (50, 2560805), (65, 1969850), (125, 1024322), (130, 984925), (250, 512161), (325, 393970), (650, 196985), (1625, 78794), (3250, 39397)]