About the Number

2802990

2802989 ← → 2802991

2進数表記:1010101100010100101110

漢数字表記:二百八十万二千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 233 1 × 401 1

素因数の和:644
約数の個数: 32
約数和(自身を含む): 6772896
約数和(自身を除く): 3969906

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 233, 401, 466, 699, 802, 1165, 1203, 1398, 2005, 2330, 2406, 3495, 4010, 6015, 6990, 12030, 93433, 186866, 280299, 467165, 560598, 934330, 1401495, 2802990]

約数ペア:
[(1, 2802990), (2, 1401495), (3, 934330), (5, 560598), (6, 467165), (10, 280299), (15, 186866), (30, 93433), (233, 12030), (401, 6990), (466, 6015), (699, 4010), (802, 3495), (1165, 2406), (1203, 2330), (1398, 2005)]

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