About the Number

12801480

12801479 ← → 12801481

2進数表記:110000110101010111001000

漢数字表記:千二百八十万千四百八十

素因数分解:

2 3 × 3 1 × 5 1 × 107 1 × 997 1

素因数の和:1118
約数の個数: 64
約数和(自身を含む): 38802240
約数和(自身を除く): 26000760

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 997, 1070, 1284, 1605, 1994, 2140, 2568, 2991, 3210, 3988, 4280, 4985, 5982, 6420, 7976, 9970, 11964, 12840, 14955, 19940, 23928, 29910, 39880, 59820, 106679, 119640, 213358, 320037, 426716, 533395, 640074, 853432, 1066790, 1280148, 1600185, 2133580, 2560296, 3200370, 4267160, 6400740, 12801480]

約数ペア:
[(1, 12801480), (2, 6400740), (3, 4267160), (4, 3200370), (5, 2560296), (6, 2133580), (8, 1600185), (10, 1280148), (12, 1066790), (15, 853432), (20, 640074), (24, 533395), (30, 426716), (40, 320037), (60, 213358), (107, 119640), (120, 106679), (214, 59820), (321, 39880), (428, 29910), (535, 23928), (642, 19940), (856, 14955), (997, 12840), (1070, 11964), (1284, 9970), (1605, 7976), (1994, 6420), (2140, 5982), (2568, 4985), (2991, 4280), (3210, 3988)]

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