20181877185

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{997}}^1$

素因数の和:1410

約数の個数: 64

約数和(自身を含む): 33369926400

約数和(自身を除く): 13188049215

約数列:

[1, 3, 5, 15, 59, 89, 177, 257, 267, 295, 445, 771, 885, 997, 1285, 1335, 2991, 3855, 4985, 5251, 14955, 15163, 15753, 22873, 26255, 45489, 58823, 68619, 75815, 78765, 88733, 114365, 176469, 227445, 256229, 266199, 294115, 343095, 443665, 768687, 882345, 1281145, 1330995, 1349507, 3843435, 4048521, 5235247, 6747535, 15117511, 15705741, 20242605, 22804381, 26176235, 45352533, 68413143, 75587555, 78528705, 114021905, 226762665, 342065715, 1345458479, 4036375437, 6727292395, 20181877185]

約数ペア:

[(1, 20181877185), (3, 6727292395), (5, 4036375437), (15, 1345458479), (59, 342065715), (89, 226762665), (177, 114021905), (257, 78528705), (267, 75587555), (295, 68413143), (445, 45352533), (771, 26176235), (885, 22804381), (997, 20242605), (1285, 15705741), (1335, 15117511), (2991, 6747535), (3855, 5235247), (4985, 4048521), (5251, 3843435), (14955, 1349507), (15163, 1330995), (15753, 1281145), (22873, 882345), (26255, 768687), (45489, 443665), (58823, 343095), (68619, 294115), (75815, 266199), (78765, 256229), (88733, 227445), (114365, 176469)]