20508717255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{144667}}^1$

素因数の和:145415

約数の個数: 32

約数和(自身を含む): 35386950144

約数和(自身を除く): 14878232889

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 727, 2181, 3635, 9451, 10905, 28353, 47255, 141765, 144667, 434001, 723335, 1880671, 2170005, 5642013, 9403355, 28210065, 105172909, 315518727, 525864545, 1367247817, 1577593635, 4101743451, 6836239085, 20508717255]

約数ペア:

[(1, 20508717255), (3, 6836239085), (5, 4101743451), (13, 1577593635), (15, 1367247817), (39, 525864545), (65, 315518727), (195, 105172909), (727, 28210065), (2181, 9403355), (3635, 5642013), (9451, 2170005), (10905, 1880671), (28353, 723335), (47255, 434001), (141765, 144667)]