About the Number

1261028400

1261028399 ← → 1261028401

2進数表記:1001011001010011100010000110000

漢数字表記:十二億六千百二万八千四百

素因数分解:

2 4 × 3 1 × 5 2 × 521 1 × 2017 1

素因数の和:2559
約数の個数: 120
約数和(自身を含む): 4049254224
約数和(自身を除く): 2788225824

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 521, 600, 1042, 1200, 1563, 2017, 2084, 2605, 3126, 4034, 4168, 5210, 6051, 6252, 7815, 8068, 8336, 10085, 10420, 12102, 12504, 13025, 15630, 16136, 20170, 20840, 24204, 25008, 26050, 30255, 31260, 32272, 39075, 40340, 41680, 48408, 50425, 52100, 60510, 62520, 78150, 80680, 96816, 100850, 104200, 121020, 125040, 151275, 156300, 161360, 201700, 208400, 242040, 302550, 312600, 403400, 484080, 605100, 625200, 806800, 1050857, 1210200, 2101714, 2420400, 3152571, 4203428, 5254285, 6305142, 8406856, 10508570, 12610284, 15762855, 16813712, 21017140, 25220568, 26271425, 31525710, 42034280, 50441136, 52542850, 63051420, 78814275, 84068560, 105085700, 126102840, 157628550, 210171400, 252205680, 315257100, 420342800, 630514200, 1261028400]

約数ペア:
[(1, 1261028400), (2, 630514200), (3, 420342800), (4, 315257100), (5, 252205680), (6, 210171400), (8, 157628550), (10, 126102840), (12, 105085700), (15, 84068560), (16, 78814275), (20, 63051420), (24, 52542850), (25, 50441136), (30, 42034280), (40, 31525710), (48, 26271425), (50, 25220568), (60, 21017140), (75, 16813712), (80, 15762855), (100, 12610284), (120, 10508570), (150, 8406856), (200, 6305142), (240, 5254285), (300, 4203428), (400, 3152571), (521, 2420400), (600, 2101714), (1042, 1210200), (1200, 1050857), (1563, 806800), (2017, 625200), (2084, 605100), (2605, 484080), (3126, 403400), (4034, 312600), (4168, 302550), (5210, 242040), (6051, 208400), (6252, 201700), (7815, 161360), (8068, 156300), (8336, 151275), (10085, 125040), (10420, 121020), (12102, 104200), (12504, 100850), (13025, 96816), (15630, 80680), (16136, 78150), (20170, 62520), (20840, 60510), (24204, 52100), (25008, 50425), (26050, 48408), (30255, 41680), (31260, 40340), (32272, 39075)]

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