About the Number

81009700

81009699 ← → 81009701

2進数表記:100110101000001110000100100

漢数字表記:八千百万九千七百

素因数分解:

2 2 × 5 2 × 67 1 × 107 1 × 113 1

素因数の和:301
約数の個数: 72
約数和(自身を含む): 181675872
約数和(自身を除く): 100666172

約数列:
[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 107, 113, 134, 214, 226, 268, 335, 428, 452, 535, 565, 670, 1070, 1130, 1340, 1675, 2140, 2260, 2675, 2825, 3350, 5350, 5650, 6700, 7169, 7571, 10700, 11300, 12091, 14338, 15142, 24182, 28676, 30284, 35845, 37855, 48364, 60455, 71690, 75710, 120910, 143380, 151420, 179225, 189275, 241820, 302275, 358450, 378550, 604550, 716900, 757100, 810097, 1209100, 1620194, 3240388, 4050485, 8100970, 16201940, 20252425, 40504850, 81009700]

約数ペア:
[(1, 81009700), (2, 40504850), (4, 20252425), (5, 16201940), (10, 8100970), (20, 4050485), (25, 3240388), (50, 1620194), (67, 1209100), (100, 810097), (107, 757100), (113, 716900), (134, 604550), (214, 378550), (226, 358450), (268, 302275), (335, 241820), (428, 189275), (452, 179225), (535, 151420), (565, 143380), (670, 120910), (1070, 75710), (1130, 71690), (1340, 60455), (1675, 48364), (2140, 37855), (2260, 35845), (2675, 30284), (2825, 28676), (3350, 24182), (5350, 15142), (5650, 14338), (6700, 12091), (7169, 11300), (7571, 10700)]

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