About the Number

102012990

102012989 ← → 102012991

2進数表記:110000101001001100000111110

漢数字表記:一億二百一万二千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 883 1 × 3851 1

素因数の和:4744
約数の個数: 32
約数和(自身を含む): 245172096
約数和(自身を除く): 143159106

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 883, 1766, 2649, 3851, 4415, 5298, 7702, 8830, 11553, 13245, 19255, 23106, 26490, 38510, 57765, 115530, 3400433, 6800866, 10201299, 17002165, 20402598, 34004330, 51006495, 102012990]

約数ペア:
[(1, 102012990), (2, 51006495), (3, 34004330), (5, 20402598), (6, 17002165), (10, 10201299), (15, 6800866), (30, 3400433), (883, 115530), (1766, 57765), (2649, 38510), (3851, 26490), (4415, 23106), (5298, 19255), (7702, 13245), (8830, 11553)]

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