68980305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1723}}^1$

素因数の和:1905

約数の個数: 32

約数和(自身を含む): 117673344

約数和(自身を除く): 48693039

約数列:

[1, 3, 5, 15, 17, 51, 85, 157, 255, 471, 785, 1723, 2355, 2669, 5169, 8007, 8615, 13345, 25845, 29291, 40035, 87873, 146455, 270511, 439365, 811533, 1352555, 4057665, 4598687, 13796061, 22993435, 68980305]

約数ペア:

[(1, 68980305), (3, 22993435), (5, 13796061), (15, 4598687), (17, 4057665), (51, 1352555), (85, 811533), (157, 439365), (255, 270511), (471, 146455), (785, 87873), (1723, 40035), (2355, 29291), (2669, 25845), (5169, 13345), (8007, 8615)]