25660700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19739}}^1$

素因数の和:19766

約数の個数: 36

約数和(自身を含む): 59970120

約数和(自身を除く): 34309420

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 19739, 39478, 78956, 98695, 197390, 256607, 394780, 493475, 513214, 986950, 1026428, 1283035, 1973900, 2566070, 5132140, 6415175, 12830350, 25660700]

約数ペア:

[(1, 25660700), (2, 12830350), (4, 6415175), (5, 5132140), (10, 2566070), (13, 1973900), (20, 1283035), (25, 1026428), (26, 986950), (50, 513214), (52, 493475), (65, 394780), (100, 256607), (130, 197390), (260, 98695), (325, 78956), (650, 39478), (1300, 19739)]