About the Number

12981776

12981775 ← → 12981777

2進数表記:110001100001011000010000

漢数字表記:千二百九十八万千七百七十六

素因数分解:

2 4 × 47 1 × 61 1 × 283 1

素因数の和:399
約数の個数: 40
約数和(自身を含む): 26200704
約数和(自身を除く): 13218928

約数列:
[1, 2, 4, 8, 16, 47, 61, 94, 122, 188, 244, 283, 376, 488, 566, 752, 976, 1132, 2264, 2867, 4528, 5734, 11468, 13301, 17263, 22936, 26602, 34526, 45872, 53204, 69052, 106408, 138104, 212816, 276208, 811361, 1622722, 3245444, 6490888, 12981776]

約数ペア:
[(1, 12981776), (2, 6490888), (4, 3245444), (8, 1622722), (16, 811361), (47, 276208), (61, 212816), (94, 138104), (122, 106408), (188, 69052), (244, 53204), (283, 45872), (376, 34526), (488, 26602), (566, 22936), (752, 17263), (976, 13301), (1132, 11468), (2264, 5734), (2867, 4528)]

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