About the Number

12981120

12981119 ← → 12981121

2進数表記:110001100001001110000000

漢数字表記:千二百九十八万千百二十

素因数分解:

2 7 × 3 1 × 5 1 × 6761 1

素因数の和:6783
約数の個数: 64
約数和(自身を含む): 41383440
約数和(自身を除く): 28402320

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, 6761, 13522, 20283, 27044, 33805, 40566, 54088, 67610, 81132, 101415, 108176, 135220, 162264, 202830, 216352, 270440, 324528, 405660, 432704, 540880, 649056, 811320, 865408, 1081760, 1298112, 1622640, 2163520, 2596224, 3245280, 4327040, 6490560, 12981120]

約数ペア:
[(1, 12981120), (2, 6490560), (3, 4327040), (4, 3245280), (5, 2596224), (6, 2163520), (8, 1622640), (10, 1298112), (12, 1081760), (15, 865408), (16, 811320), (20, 649056), (24, 540880), (30, 432704), (32, 405660), (40, 324528), (48, 270440), (60, 216352), (64, 202830), (80, 162264), (96, 135220), (120, 108176), (128, 101415), (160, 81132), (192, 67610), (240, 54088), (320, 40566), (384, 33805), (480, 27044), (640, 20283), (960, 13522), (1920, 6761)]

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