About the Number

131191680

131191679 ← → 131191681

2進数表記:111110100011101001110000000

漢数字表記:一億三千百十九万千六百八十

素因数分解:

2 7 × 3 1 × 5 1 × 68329 1

素因数の和:68351
約数の個数: 64
約数和(自身を含む): 418179600
約数和(自身を除く): 286987920

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 68329, 136658, 204987, 273316, 341645, 409974, 546632, 683290, 819948, 1024935, 1093264, 1366580, 1639896, 2049870, 2186528, 2733160, 3279792, 4099740, 4373056, 5466320, 6559584, 8199480, 8746112, 10932640, 13119168, 16398960, 21865280, 26238336, 32797920, 43730560, 65595840, 131191680]

約数ペア:
[(1, 131191680), (2, 65595840), (3, 43730560), (4, 32797920), (5, 26238336), (6, 21865280), (8, 16398960), (10, 13119168), (12, 10932640), (15, 8746112), (16, 8199480), (20, 6559584), (24, 5466320), (30, 4373056), (32, 4099740), (40, 3279792), (48, 2733160), (60, 2186528), (64, 2049870), (80, 1639896), (96, 1366580), (120, 1093264), (128, 1024935), (160, 819948), (192, 683290), (240, 546632), (320, 409974), (384, 341645), (480, 273316), (640, 204987), (960, 136658), (1920, 68329)]

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