About the Number

12881040

12881039 ← → 12881041

2進数表記:110001001000110010010000

漢数字表記:千二百八十八万千四十

素因数分解:

2 4 × 3 1 × 5 1 × 191 1 × 281 1

素因数の和:488
約数の個数: 80
約数和(自身を含む): 40283136
約数和(自身を除く): 27402096

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 191, 240, 281, 382, 562, 573, 764, 843, 955, 1124, 1146, 1405, 1528, 1686, 1910, 2248, 2292, 2810, 2865, 3056, 3372, 3820, 4215, 4496, 4584, 5620, 5730, 6744, 7640, 8430, 9168, 11240, 11460, 13488, 15280, 16860, 22480, 22920, 33720, 45840, 53671, 67440, 107342, 161013, 214684, 268355, 322026, 429368, 536710, 644052, 805065, 858736, 1073420, 1288104, 1610130, 2146840, 2576208, 3220260, 4293680, 6440520, 12881040]

約数ペア:
[(1, 12881040), (2, 6440520), (3, 4293680), (4, 3220260), (5, 2576208), (6, 2146840), (8, 1610130), (10, 1288104), (12, 1073420), (15, 858736), (16, 805065), (20, 644052), (24, 536710), (30, 429368), (40, 322026), (48, 268355), (60, 214684), (80, 161013), (120, 107342), (191, 67440), (240, 53671), (281, 45840), (382, 33720), (562, 22920), (573, 22480), (764, 16860), (843, 15280), (955, 13488), (1124, 11460), (1146, 11240), (1405, 9168), (1528, 8430), (1686, 7640), (1910, 6744), (2248, 5730), (2292, 5620), (2810, 4584), (2865, 4496), (3056, 4215), (3372, 3820)]

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