128872705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{3203}}^1$

素因数の和:3840

約数の個数: 16

約数和(自身を含む): 166864320

約数和(自身を除く): 37991615

約数列:

[1, 5, 13, 65, 619, 3095, 3203, 8047, 16015, 40235, 41639, 208195, 1982657, 9913285, 25774541, 128872705]

約数ペア:

[(1, 128872705), (5, 25774541), (13, 9913285), (65, 1982657), (619, 208195), (3095, 41639), (3203, 40235), (8047, 16015)]