20128776875

素因数分解:

$5^4\times {\mathrm{701}}^1\times {\mathrm{45943}}^1$

素因数の和:46664

約数の個数: 20

約数和(自身を含む): 25189349328

約数和(自身を除く): 5060572453

約数列:

[1, 5, 25, 125, 625, 701, 3505, 17525, 45943, 87625, 229715, 438125, 1148575, 5742875, 28714375, 32206043, 161030215, 805151075, 4025755375, 20128776875]

約数ペア:

[(1, 20128776875), (5, 4025755375), (25, 805151075), (125, 161030215), (625, 32206043), (701, 28714375), (3505, 5742875), (17525, 1148575), (45943, 438125), (87625, 229715)]