About the Number

131809680

131809679 ← → 131809681

2進数表記:111110110110100000110010000

漢数字表記:一億三千百八十万九千六百八十

素因数分解:

2 4 × 3 4 × 5 1 × 20341 1

素因数の和:20366
約数の個数: 100
約数和(自身を含む): 457817052
約数和(自身を除く): 326007372

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 20341, 40682, 61023, 81364, 101705, 122046, 162728, 183069, 203410, 244092, 305115, 325456, 366138, 406820, 488184, 549207, 610230, 732276, 813640, 915345, 976368, 1098414, 1220460, 1464552, 1627280, 1647621, 1830690, 2196828, 2440920, 2746035, 2929104, 3295242, 3661380, 4393656, 4881840, 5492070, 6590484, 7322760, 8238105, 8787312, 10984140, 13180968, 14645520, 16476210, 21968280, 26361936, 32952420, 43936560, 65904840, 131809680]

約数ペア:
[(1, 131809680), (2, 65904840), (3, 43936560), (4, 32952420), (5, 26361936), (6, 21968280), (8, 16476210), (9, 14645520), (10, 13180968), (12, 10984140), (15, 8787312), (16, 8238105), (18, 7322760), (20, 6590484), (24, 5492070), (27, 4881840), (30, 4393656), (36, 3661380), (40, 3295242), (45, 2929104), (48, 2746035), (54, 2440920), (60, 2196828), (72, 1830690), (80, 1647621), (81, 1627280), (90, 1464552), (108, 1220460), (120, 1098414), (135, 976368), (144, 915345), (162, 813640), (180, 732276), (216, 610230), (240, 549207), (270, 488184), (324, 406820), (360, 366138), (405, 325456), (432, 305115), (540, 244092), (648, 203410), (720, 183069), (810, 162728), (1080, 122046), (1296, 101705), (1620, 81364), (2160, 61023), (3240, 40682), (6480, 20341)]

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