About the Number

2101888970

2101888969 ← → 2101888971

2進数表記:1111101010010000100011111001010

漢数字表記:二十一億百八十八万八千九百七十

素因数分解:

2 1 × 5 1 × 29 1 × 31 1 × 37 1 × 71 1 × 89 1

素因数の和:264
約数の個数: 128
約数和(自身を含む): 4255027200
約数和(自身を除く): 2153138230

約数列:
[1, 2, 5, 10, 29, 31, 37, 58, 62, 71, 74, 89, 142, 145, 155, 178, 185, 290, 310, 355, 370, 445, 710, 890, 899, 1073, 1147, 1798, 2059, 2146, 2201, 2294, 2581, 2627, 2759, 3293, 4118, 4402, 4495, 5162, 5254, 5365, 5518, 5735, 6319, 6586, 8990, 10295, 10730, 11005, 11470, 12638, 12905, 13135, 13795, 16465, 20590, 22010, 25810, 26270, 27590, 31595, 32930, 33263, 63190, 63829, 66526, 76183, 80011, 81437, 95497, 102083, 127658, 152366, 160022, 162874, 166315, 183251, 190994, 195889, 204166, 233803, 319145, 332630, 366502, 380915, 391778, 400055, 407185, 467606, 477485, 510415, 638290, 761830, 800110, 814370, 916255, 954970, 979445, 1020830, 1169015, 1832510, 1958890, 2338030, 2361673, 2960407, 4723346, 5680781, 5920814, 6780287, 7247893, 11361562, 11808365, 13560574, 14495786, 14802035, 23616730, 28403905, 29604070, 33901435, 36239465, 56807810, 67802870, 72478930, 210188897, 420377794, 1050944485, 2101888970]

約数ペア:
[(1, 2101888970), (2, 1050944485), (5, 420377794), (10, 210188897), (29, 72478930), (31, 67802870), (37, 56807810), (58, 36239465), (62, 33901435), (71, 29604070), (74, 28403905), (89, 23616730), (142, 14802035), (145, 14495786), (155, 13560574), (178, 11808365), (185, 11361562), (290, 7247893), (310, 6780287), (355, 5920814), (370, 5680781), (445, 4723346), (710, 2960407), (890, 2361673), (899, 2338030), (1073, 1958890), (1147, 1832510), (1798, 1169015), (2059, 1020830), (2146, 979445), (2201, 954970), (2294, 916255), (2581, 814370), (2627, 800110), (2759, 761830), (3293, 638290), (4118, 510415), (4402, 477485), (4495, 467606), (5162, 407185), (5254, 400055), (5365, 391778), (5518, 380915), (5735, 366502), (6319, 332630), (6586, 319145), (8990, 233803), (10295, 204166), (10730, 195889), (11005, 190994), (11470, 183251), (12638, 166315), (12905, 162874), (13135, 160022), (13795, 152366), (16465, 127658), (20590, 102083), (22010, 95497), (25810, 81437), (26270, 80011), (27590, 76183), (31595, 66526), (32930, 63829), (33263, 63190)]

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