20660415

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 34461696

約数和(自身を除く): 13801281

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 283, 465, 471, 785, 849, 1415, 2355, 4245, 4867, 8773, 14601, 24335, 26319, 43865, 44431, 73005, 131595, 133293, 222155, 666465, 1377361, 4132083, 6886805, 20660415]

約数ペア:

[(1, 20660415), (3, 6886805), (5, 4132083), (15, 1377361), (31, 666465), (93, 222155), (155, 133293), (157, 131595), (283, 73005), (465, 44431), (471, 43865), (785, 26319), (849, 24335), (1415, 14601), (2355, 8773), (4245, 4867)]