About the Number

1291247991

1291247990 ← → 1291247992

2進数表記:1001100111101101110000101110111

漢数字表記:十二億九千百二十四万七千九百九十一

素因数分解:

3 2 × 11 2 × 23 1 × 31 1 × 1663 1

素因数の和:1745
約数の個数: 72
約数和(自身を含む): 2209579008
約数和(自身を除く): 918331017

約数列:
[1, 3, 9, 11, 23, 31, 33, 69, 93, 99, 121, 207, 253, 279, 341, 363, 713, 759, 1023, 1089, 1663, 2139, 2277, 2783, 3069, 3751, 4989, 6417, 7843, 8349, 11253, 14967, 18293, 23529, 25047, 33759, 38249, 51553, 54879, 70587, 86273, 114747, 154659, 164637, 201223, 258819, 344241, 420739, 463977, 567083, 603669, 776457, 1185719, 1262217, 1701249, 1811007, 3557157, 3786651, 4628129, 5103747, 6237913, 10671471, 13042909, 13884387, 18713739, 39128727, 41653161, 56141217, 117386181, 143471999, 430415997, 1291247991]

約数ペア:
[(1, 1291247991), (3, 430415997), (9, 143471999), (11, 117386181), (23, 56141217), (31, 41653161), (33, 39128727), (69, 18713739), (93, 13884387), (99, 13042909), (121, 10671471), (207, 6237913), (253, 5103747), (279, 4628129), (341, 3786651), (363, 3557157), (713, 1811007), (759, 1701249), (1023, 1262217), (1089, 1185719), (1663, 776457), (2139, 603669), (2277, 567083), (2783, 463977), (3069, 420739), (3751, 344241), (4989, 258819), (6417, 201223), (7843, 164637), (8349, 154659), (11253, 114747), (14967, 86273), (18293, 70587), (23529, 54879), (25047, 51553), (33759, 38249)]

このpageの処理時間: 0.08686280250549316 seconds