About the Number

260906380

260906379 ← → 260906381

2進数表記:1111100011010001110110001100

漢数字表記:二億六千九十万六千三百八十

素因数分解:

2 2 × 5 1 × 7 3 × 73 1 × 521 1

素因数の和:624
約数の個数: 96
約数和(自身を含む): 648950400
約数和(自身を除く): 388044020

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 343, 365, 490, 511, 521, 686, 730, 980, 1022, 1042, 1372, 1460, 1715, 2044, 2084, 2555, 2605, 3430, 3577, 3647, 5110, 5210, 6860, 7154, 7294, 10220, 10420, 14308, 14588, 17885, 18235, 25039, 25529, 35770, 36470, 38033, 50078, 51058, 71540, 72940, 76066, 100156, 102116, 125195, 127645, 152132, 178703, 190165, 250390, 255290, 266231, 357406, 380330, 500780, 510580, 532462, 714812, 760660, 893515, 1064924, 1331155, 1787030, 1863617, 2662310, 3574060, 3727234, 5324620, 7454468, 9318085, 13045319, 18636170, 26090638, 37272340, 52181276, 65226595, 130453190, 260906380]

約数ペア:
[(1, 260906380), (2, 130453190), (4, 65226595), (5, 52181276), (7, 37272340), (10, 26090638), (14, 18636170), (20, 13045319), (28, 9318085), (35, 7454468), (49, 5324620), (70, 3727234), (73, 3574060), (98, 2662310), (140, 1863617), (146, 1787030), (196, 1331155), (245, 1064924), (292, 893515), (343, 760660), (365, 714812), (490, 532462), (511, 510580), (521, 500780), (686, 380330), (730, 357406), (980, 266231), (1022, 255290), (1042, 250390), (1372, 190165), (1460, 178703), (1715, 152132), (2044, 127645), (2084, 125195), (2555, 102116), (2605, 100156), (3430, 76066), (3577, 72940), (3647, 71540), (5110, 51058), (5210, 50078), (6860, 38033), (7154, 36470), (7294, 35770), (10220, 25529), (10420, 25039), (14308, 18235), (14588, 17885)]

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