About the Number

2018390990

2018390989 ← → 2018390991

2進数表記:1111000010011100011001111001110

漢数字表記:二十億千八百三十九万九百九十

素因数分解:

2 1 × 5 1 × 7 1 × 11 1 × 23 1 × 113969 1

素因数の和:114017
約数の個数: 64
約数和(自身を含む): 4726563840
約数和(自身を除く): 2708172850

約数列:
[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1265, 1610, 1771, 2530, 3542, 8855, 17710, 113969, 227938, 569845, 797783, 1139690, 1253659, 1595566, 2507318, 2621287, 3988915, 5242574, 6268295, 7977830, 8775613, 12536590, 13106435, 17551226, 18349009, 26212870, 28834157, 36698018, 43878065, 57668314, 87756130, 91745045, 144170785, 183490090, 201839099, 288341570, 403678198, 1009195495, 2018390990]

約数ペア:
[(1, 2018390990), (2, 1009195495), (5, 403678198), (7, 288341570), (10, 201839099), (11, 183490090), (14, 144170785), (22, 91745045), (23, 87756130), (35, 57668314), (46, 43878065), (55, 36698018), (70, 28834157), (77, 26212870), (110, 18349009), (115, 17551226), (154, 13106435), (161, 12536590), (230, 8775613), (253, 7977830), (322, 6268295), (385, 5242574), (506, 3988915), (770, 2621287), (805, 2507318), (1265, 1595566), (1610, 1253659), (1771, 1139690), (2530, 797783), (3542, 569845), (8855, 227938), (17710, 113969)]

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