About the Number

11990090

11990089 ← → 11990091

2進数表記:101101101111010001001010

漢数字表記:千百九十九万九十

素因数分解:

2 1 × 5 1 × 7 1 × 157 1 × 1091 1

素因数の和:1262
約数の個数: 32
約数和(自身を含む): 24845184
約数和(自身を除く): 12855094

約数列:
[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1091, 1099, 1570, 2182, 2198, 5455, 5495, 7637, 10910, 10990, 15274, 38185, 76370, 171287, 342574, 856435, 1199009, 1712870, 2398018, 5995045, 11990090]

約数ペア:
[(1, 11990090), (2, 5995045), (5, 2398018), (7, 1712870), (10, 1199009), (14, 856435), (35, 342574), (70, 171287), (157, 76370), (314, 38185), (785, 15274), (1091, 10990), (1099, 10910), (1570, 7637), (2182, 5495), (2198, 5455)]

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