About the Number

212481640

212481639 ← → 212481641

2進数表記:1100101010100011011001101000

漢数字表記:二億千二百四十八万千六百四十

素因数分解:

2 3 × 5 1 × 7 3 × 17 1 × 911 1

素因数の和:960
約数の個数: 128
約数和(自身を含む): 590976000
約数和(自身を除く): 378494360

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 238, 245, 280, 340, 343, 392, 476, 490, 595, 680, 686, 833, 911, 952, 980, 1190, 1372, 1666, 1715, 1822, 1960, 2380, 2744, 3332, 3430, 3644, 4165, 4555, 4760, 5831, 6377, 6664, 6860, 7288, 8330, 9110, 11662, 12754, 13720, 15487, 16660, 18220, 23324, 25508, 29155, 30974, 31885, 33320, 36440, 44639, 46648, 51016, 58310, 61948, 63770, 77435, 89278, 108409, 116620, 123896, 127540, 154870, 178556, 216818, 223195, 233240, 255080, 309740, 312473, 357112, 433636, 446390, 542045, 619480, 624946, 758863, 867272, 892780, 1084090, 1249892, 1517726, 1562365, 1785560, 2168180, 2499784, 3035452, 3124730, 3794315, 4336360, 5312041, 6070904, 6249460, 7588630, 10624082, 12498920, 15177260, 21248164, 26560205, 30354520, 42496328, 53120410, 106240820, 212481640]

約数ペア:
[(1, 212481640), (2, 106240820), (4, 53120410), (5, 42496328), (7, 30354520), (8, 26560205), (10, 21248164), (14, 15177260), (17, 12498920), (20, 10624082), (28, 7588630), (34, 6249460), (35, 6070904), (40, 5312041), (49, 4336360), (56, 3794315), (68, 3124730), (70, 3035452), (85, 2499784), (98, 2168180), (119, 1785560), (136, 1562365), (140, 1517726), (170, 1249892), (196, 1084090), (238, 892780), (245, 867272), (280, 758863), (340, 624946), (343, 619480), (392, 542045), (476, 446390), (490, 433636), (595, 357112), (680, 312473), (686, 309740), (833, 255080), (911, 233240), (952, 223195), (980, 216818), (1190, 178556), (1372, 154870), (1666, 127540), (1715, 123896), (1822, 116620), (1960, 108409), (2380, 89278), (2744, 77435), (3332, 63770), (3430, 61948), (3644, 58310), (4165, 51016), (4555, 46648), (4760, 44639), (5831, 36440), (6377, 33320), (6664, 31885), (6860, 30974), (7288, 29155), (8330, 25508), (9110, 23324), (11662, 18220), (12754, 16660), (13720, 15487)]

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