About the Number

12991770

12991769 ← → 12991771

2進数表記:110001100011110100011010

漢数字表記:千二百九十九万千七百七十

素因数分解:

2 1 × 3 2 × 5 1 × 11 2 × 1193 1

素因数の和:1228
約数の個数: 72
約数和(自身を含む): 37159668
約数和(自身を除く): 24167898

約数列:
[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1193, 1210, 1815, 2178, 2386, 3579, 3630, 5445, 5965, 7158, 10737, 10890, 11930, 13123, 17895, 21474, 26246, 35790, 39369, 53685, 65615, 78738, 107370, 118107, 131230, 144353, 196845, 236214, 288706, 393690, 433059, 590535, 721765, 866118, 1181070, 1299177, 1443530, 2165295, 2598354, 4330590, 6495885, 12991770]

約数ペア:
[(1, 12991770), (2, 6495885), (3, 4330590), (5, 2598354), (6, 2165295), (9, 1443530), (10, 1299177), (11, 1181070), (15, 866118), (18, 721765), (22, 590535), (30, 433059), (33, 393690), (45, 288706), (55, 236214), (66, 196845), (90, 144353), (99, 131230), (110, 118107), (121, 107370), (165, 78738), (198, 65615), (242, 53685), (330, 39369), (363, 35790), (495, 26246), (605, 21474), (726, 17895), (990, 13123), (1089, 11930), (1193, 10890), (1210, 10737), (1815, 7158), (2178, 5965), (2386, 5445), (3579, 3630)]

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