About the Number

131521680

131521679 ← → 131521681

2進数表記:111110101101101110010010000

漢数字表記:一億三千百五十二万千六百八十

素因数分解:

2 4 × 3 2 × 5 1 × 37 1 × 4937 1

素因数の和:4993
約数の個数: 120
約数和(自身を含む): 453723192
約数和(自身を除く): 322201512

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 888, 1110, 1332, 1480, 1665, 1776, 2220, 2664, 2960, 3330, 4440, 4937, 5328, 6660, 8880, 9874, 13320, 14811, 19748, 24685, 26640, 29622, 39496, 44433, 49370, 59244, 74055, 78992, 88866, 98740, 118488, 148110, 177732, 182669, 197480, 222165, 236976, 296220, 355464, 365338, 394960, 444330, 548007, 592440, 710928, 730676, 888660, 913345, 1096014, 1184880, 1461352, 1644021, 1777320, 1826690, 2192028, 2740035, 2922704, 3288042, 3554640, 3653380, 4384056, 5480070, 6576084, 7306760, 8220105, 8768112, 10960140, 13152168, 14613520, 16440210, 21920280, 26304336, 32880420, 43840560, 65760840, 131521680]

約数ペア:
[(1, 131521680), (2, 65760840), (3, 43840560), (4, 32880420), (5, 26304336), (6, 21920280), (8, 16440210), (9, 14613520), (10, 13152168), (12, 10960140), (15, 8768112), (16, 8220105), (18, 7306760), (20, 6576084), (24, 5480070), (30, 4384056), (36, 3653380), (37, 3554640), (40, 3288042), (45, 2922704), (48, 2740035), (60, 2192028), (72, 1826690), (74, 1777320), (80, 1644021), (90, 1461352), (111, 1184880), (120, 1096014), (144, 913345), (148, 888660), (180, 730676), (185, 710928), (222, 592440), (240, 548007), (296, 444330), (333, 394960), (360, 365338), (370, 355464), (444, 296220), (555, 236976), (592, 222165), (666, 197480), (720, 182669), (740, 177732), (888, 148110), (1110, 118488), (1332, 98740), (1480, 88866), (1665, 78992), (1776, 74055), (2220, 59244), (2664, 49370), (2960, 44433), (3330, 39496), (4440, 29622), (4937, 26640), (5328, 24685), (6660, 19748), (8880, 14811), (9874, 13320)]

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