About the Number

812820

812819 ← → 812821

2進数表記:11000110011100010100

漢数字表記:八十一万二千八百二十

素因数分解:

2 2 × 3 1 × 5 1 × 19 1 × 23 1 × 31 1

素因数の和:85
約数の個数: 96
約数和(自身を含む): 2580480
約数和(自身を除く): 1767660

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 23, 30, 31, 38, 46, 57, 60, 62, 69, 76, 92, 93, 95, 114, 115, 124, 138, 155, 186, 190, 228, 230, 276, 285, 310, 345, 372, 380, 437, 460, 465, 570, 589, 620, 690, 713, 874, 930, 1140, 1178, 1311, 1380, 1426, 1748, 1767, 1860, 2139, 2185, 2356, 2622, 2852, 2945, 3534, 3565, 4278, 4370, 5244, 5890, 6555, 7068, 7130, 8556, 8740, 8835, 10695, 11780, 13110, 13547, 14260, 17670, 21390, 26220, 27094, 35340, 40641, 42780, 54188, 67735, 81282, 135470, 162564, 203205, 270940, 406410, 812820]

約数ペア:
[(1, 812820), (2, 406410), (3, 270940), (4, 203205), (5, 162564), (6, 135470), (10, 81282), (12, 67735), (15, 54188), (19, 42780), (20, 40641), (23, 35340), (30, 27094), (31, 26220), (38, 21390), (46, 17670), (57, 14260), (60, 13547), (62, 13110), (69, 11780), (76, 10695), (92, 8835), (93, 8740), (95, 8556), (114, 7130), (115, 7068), (124, 6555), (138, 5890), (155, 5244), (186, 4370), (190, 4278), (228, 3565), (230, 3534), (276, 2945), (285, 2852), (310, 2622), (345, 2356), (372, 2185), (380, 2139), (437, 1860), (460, 1767), (465, 1748), (570, 1426), (589, 1380), (620, 1311), (690, 1178), (713, 1140), (874, 930)]

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