About the Number
12708990
2進数表記:110000011110110001111110
漢数字表記:千二百七十万八千九百九十
素因数分解:
素因数の和:20193
約数の個数: 48
約数和(自身を含む): 37765728
約数和(自身を除く): 25056738
約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 20173, 40346, 60519, 100865, 121038, 141211, 181557, 201730, 282422, 302595, 363114, 423633, 605190, 706055, 847266, 907785, 1270899, 1412110, 1815570, 2118165, 2541798, 4236330, 6354495, 12708990]
約数ペア:
[(1, 12708990), (2, 6354495), (3, 4236330), (5, 2541798), (6, 2118165), (7, 1815570), (9, 1412110), (10, 1270899), (14, 907785), (15, 847266), (18, 706055), (21, 605190), (30, 423633), (35, 363114), (42, 302595), (45, 282422), (63, 201730), (70, 181557), (90, 141211), (105, 121038), (126, 100865), (210, 60519), (315, 40346), (630, 20173)]このpageの処理時間: 0.05676102638244629 seconds