About the Number

28280640

28280639 ← → 28280641

2進数表記:1101011111000011101000000

漢数字表記:二千八百二十八万六百四十

素因数分解:

2 6 × 3 1 × 5 1 × 89 1 × 331 1

素因数の和:440
約数の個数: 112
約数和(自身を含む): 91074240
約数和(自身を除く): 62793600

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 89, 96, 120, 160, 178, 192, 240, 267, 320, 331, 356, 445, 480, 534, 662, 712, 890, 960, 993, 1068, 1324, 1335, 1424, 1655, 1780, 1986, 2136, 2648, 2670, 2848, 3310, 3560, 3972, 4272, 4965, 5296, 5340, 5696, 6620, 7120, 7944, 8544, 9930, 10592, 10680, 13240, 14240, 15888, 17088, 19860, 21184, 21360, 26480, 28480, 29459, 31776, 39720, 42720, 52960, 58918, 63552, 79440, 85440, 88377, 105920, 117836, 147295, 158880, 176754, 235672, 294590, 317760, 353508, 441885, 471344, 589180, 707016, 883770, 942688, 1178360, 1414032, 1767540, 1885376, 2356720, 2828064, 3535080, 4713440, 5656128, 7070160, 9426880, 14140320, 28280640]

約数ペア:
[(1, 28280640), (2, 14140320), (3, 9426880), (4, 7070160), (5, 5656128), (6, 4713440), (8, 3535080), (10, 2828064), (12, 2356720), (15, 1885376), (16, 1767540), (20, 1414032), (24, 1178360), (30, 942688), (32, 883770), (40, 707016), (48, 589180), (60, 471344), (64, 441885), (80, 353508), (89, 317760), (96, 294590), (120, 235672), (160, 176754), (178, 158880), (192, 147295), (240, 117836), (267, 105920), (320, 88377), (331, 85440), (356, 79440), (445, 63552), (480, 58918), (534, 52960), (662, 42720), (712, 39720), (890, 31776), (960, 29459), (993, 28480), (1068, 26480), (1324, 21360), (1335, 21184), (1424, 19860), (1655, 17088), (1780, 15888), (1986, 14240), (2136, 13240), (2648, 10680), (2670, 10592), (2848, 9930), (3310, 8544), (3560, 7944), (3972, 7120), (4272, 6620), (4965, 5696), (5296, 5340)]

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