About the Number

210940990

210940989 ← → 210940991

2進数表記:1100100100101011010000111110

漢数字表記:二億千九十四万九百九十

素因数分解:

2 1 × 5 1 × 13 1 × 907 1 × 1789 1

素因数の和:2716
約数の個数: 32
約数和(自身を含む): 409580640
約数和(自身を除く): 198639650

約数列:
[1, 2, 5, 10, 13, 26, 65, 130, 907, 1789, 1814, 3578, 4535, 8945, 9070, 11791, 17890, 23257, 23582, 46514, 58955, 116285, 117910, 232570, 1622623, 3245246, 8113115, 16226230, 21094099, 42188198, 105470495, 210940990]

約数ペア:
[(1, 210940990), (2, 105470495), (5, 42188198), (10, 21094099), (13, 16226230), (26, 8113115), (65, 3245246), (130, 1622623), (907, 232570), (1789, 117910), (1814, 116285), (3578, 58955), (4535, 46514), (8945, 23582), (9070, 23257), (11791, 17890)]

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