About the Number

1231068780

1231068779 ← → 1231068781

2進数表記:1001001011000001001111001101100

漢数字表記:十二億三千百六万八千七百八十

素因数分解:

2 2 × 3 4 × 5 1 × 523 1 × 1453 1

素因数の和:1997
約数の個数: 120
約数和(自身を含む): 3871955472
約数和(自身を除く): 2640886692

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 523, 540, 810, 1046, 1453, 1569, 1620, 2092, 2615, 2906, 3138, 4359, 4707, 5230, 5812, 6276, 7265, 7845, 8718, 9414, 10460, 13077, 14121, 14530, 15690, 17436, 18828, 21795, 23535, 26154, 28242, 29060, 31380, 39231, 42363, 43590, 47070, 52308, 56484, 65385, 70605, 78462, 84726, 87180, 94140, 117693, 130770, 141210, 156924, 169452, 196155, 211815, 235386, 261540, 282420, 392310, 423630, 470772, 588465, 759919, 784620, 847260, 1176930, 1519838, 2279757, 2353860, 3039676, 3799595, 4559514, 6839271, 7599190, 9119028, 11398785, 13678542, 15198380, 20517813, 22797570, 27357084, 34196355, 41035626, 45595140, 61553439, 68392710, 82071252, 102589065, 123106878, 136785420, 205178130, 246213756, 307767195, 410356260, 615534390, 1231068780]

約数ペア:
[(1, 1231068780), (2, 615534390), (3, 410356260), (4, 307767195), (5, 246213756), (6, 205178130), (9, 136785420), (10, 123106878), (12, 102589065), (15, 82071252), (18, 68392710), (20, 61553439), (27, 45595140), (30, 41035626), (36, 34196355), (45, 27357084), (54, 22797570), (60, 20517813), (81, 15198380), (90, 13678542), (108, 11398785), (135, 9119028), (162, 7599190), (180, 6839271), (270, 4559514), (324, 3799595), (405, 3039676), (523, 2353860), (540, 2279757), (810, 1519838), (1046, 1176930), (1453, 847260), (1569, 784620), (1620, 759919), (2092, 588465), (2615, 470772), (2906, 423630), (3138, 392310), (4359, 282420), (4707, 261540), (5230, 235386), (5812, 211815), (6276, 196155), (7265, 169452), (7845, 156924), (8718, 141210), (9414, 130770), (10460, 117693), (13077, 94140), (14121, 87180), (14530, 84726), (15690, 78462), (17436, 70605), (18828, 65385), (21795, 56484), (23535, 52308), (26154, 47070), (28242, 43590), (29060, 42363), (31380, 39231)]

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