About the Number

2689492780

2689492779 ← → 2689492781

2進数表記:10100000010011100110011100101100

漢数字表記:二十六億八千九百四十九万二千七百八十

素因数分解:

2 2 × 5 1 × 13 1 × 71 1 × 89 1 × 1637 1

素因数の和:1819
約数の個数: 96
約数和(自身を含む): 6241173120
約数和(自身を除く): 3551680340

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 89, 130, 142, 178, 260, 284, 355, 356, 445, 710, 890, 923, 1157, 1420, 1637, 1780, 1846, 2314, 3274, 3692, 4615, 4628, 5785, 6319, 6548, 8185, 9230, 11570, 12638, 16370, 18460, 21281, 23140, 25276, 31595, 32740, 42562, 63190, 82147, 85124, 106405, 116227, 126380, 145693, 164294, 212810, 232454, 291386, 328588, 410735, 425620, 464908, 581135, 582772, 728465, 821470, 1162270, 1456930, 1510951, 1642940, 1894009, 2324540, 2913860, 3021902, 3788018, 6043804, 7554755, 7576036, 9470045, 10344203, 15109510, 18940090, 20688406, 30219020, 37880180, 41376812, 51721015, 103442030, 134474639, 206884060, 268949278, 537898556, 672373195, 1344746390, 2689492780]

約数ペア:
[(1, 2689492780), (2, 1344746390), (4, 672373195), (5, 537898556), (10, 268949278), (13, 206884060), (20, 134474639), (26, 103442030), (52, 51721015), (65, 41376812), (71, 37880180), (89, 30219020), (130, 20688406), (142, 18940090), (178, 15109510), (260, 10344203), (284, 9470045), (355, 7576036), (356, 7554755), (445, 6043804), (710, 3788018), (890, 3021902), (923, 2913860), (1157, 2324540), (1420, 1894009), (1637, 1642940), (1780, 1510951), (1846, 1456930), (2314, 1162270), (3274, 821470), (3692, 728465), (4615, 582772), (4628, 581135), (5785, 464908), (6319, 425620), (6548, 410735), (8185, 328588), (9230, 291386), (11570, 232454), (12638, 212810), (16370, 164294), (18460, 145693), (21281, 126380), (23140, 116227), (25276, 106405), (31595, 85124), (32740, 82147), (42562, 63190)]

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