About the Number

1902990

1902989 ← → 1902991

2進数表記:111010000100110001110

漢数字表記:百九十万二千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 229 1 × 277 1

素因数の和:516
約数の個数: 32
約数和(自身を含む): 4603680
約数和(自身を除く): 2700690

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 229, 277, 458, 554, 687, 831, 1145, 1374, 1385, 1662, 2290, 2770, 3435, 4155, 6870, 8310, 63433, 126866, 190299, 317165, 380598, 634330, 951495, 1902990]

約数ペア:
[(1, 1902990), (2, 951495), (3, 634330), (5, 380598), (6, 317165), (10, 190299), (15, 126866), (30, 63433), (229, 8310), (277, 6870), (458, 4155), (554, 3435), (687, 2770), (831, 2290), (1145, 1662), (1374, 1385)]

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