About the Number

12490880

12490879 ← → 12490881

2進数表記:101111101001100010000000

漢数字表記:千二百四十九万八百八十

素因数分解:

2 7 × 5 1 × 29 1 × 673 1

素因数の和:721
約数の個数: 64
約数和(自身を含む): 30936600
約数和(自身を除く): 18445720

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 673, 928, 1160, 1346, 1856, 2320, 2692, 3365, 3712, 4640, 5384, 6730, 9280, 10768, 13460, 18560, 19517, 21536, 26920, 39034, 43072, 53840, 78068, 86144, 97585, 107680, 156136, 195170, 215360, 312272, 390340, 430720, 624544, 780680, 1249088, 1561360, 2498176, 3122720, 6245440, 12490880]

約数ペア:
[(1, 12490880), (2, 6245440), (4, 3122720), (5, 2498176), (8, 1561360), (10, 1249088), (16, 780680), (20, 624544), (29, 430720), (32, 390340), (40, 312272), (58, 215360), (64, 195170), (80, 156136), (116, 107680), (128, 97585), (145, 86144), (160, 78068), (232, 53840), (290, 43072), (320, 39034), (464, 26920), (580, 21536), (640, 19517), (673, 18560), (928, 13460), (1160, 10768), (1346, 9280), (1856, 6730), (2320, 5384), (2692, 4640), (3365, 3712)]

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