About the Number

2008985990

2008985989 ← → 2008985991

2進数表記:1110111101111101011000110000110

漢数字表記:二十億八百九十八万五千九百九十

素因数分解:

2 1 × 5 1 × 11 2 × 59 1 × 107 1 × 263 1

素因数の和:458
約数の個数: 96
約数和(自身を含む): 4095463680
約数和(自身を除く): 2086477690

約数列:
[1, 2, 5, 10, 11, 22, 55, 59, 107, 110, 118, 121, 214, 242, 263, 295, 526, 535, 590, 605, 649, 1070, 1177, 1210, 1298, 1315, 2354, 2630, 2893, 3245, 5786, 5885, 6313, 6490, 7139, 11770, 12626, 12947, 14278, 14465, 15517, 25894, 28141, 28930, 31034, 31565, 31823, 35695, 56282, 63130, 63646, 64735, 69443, 71390, 77585, 129470, 138886, 140705, 155170, 159115, 170687, 281410, 309551, 318230, 341374, 347215, 619102, 694430, 763873, 853435, 1527746, 1547755, 1660319, 1706870, 1877557, 3095510, 3320638, 3405061, 3755114, 3819365, 6810122, 7638730, 8301595, 9387785, 16603190, 17025305, 18263509, 18775570, 34050610, 36527018, 91317545, 182635090, 200898599, 401797198, 1004492995, 2008985990]

約数ペア:
[(1, 2008985990), (2, 1004492995), (5, 401797198), (10, 200898599), (11, 182635090), (22, 91317545), (55, 36527018), (59, 34050610), (107, 18775570), (110, 18263509), (118, 17025305), (121, 16603190), (214, 9387785), (242, 8301595), (263, 7638730), (295, 6810122), (526, 3819365), (535, 3755114), (590, 3405061), (605, 3320638), (649, 3095510), (1070, 1877557), (1177, 1706870), (1210, 1660319), (1298, 1547755), (1315, 1527746), (2354, 853435), (2630, 763873), (2893, 694430), (3245, 619102), (5786, 347215), (5885, 341374), (6313, 318230), (6490, 309551), (7139, 281410), (11770, 170687), (12626, 159115), (12947, 155170), (14278, 140705), (14465, 138886), (15517, 129470), (25894, 77585), (28141, 71390), (28930, 69443), (31034, 64735), (31565, 63646), (31823, 63130), (35695, 56282)]

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