About the Number

81420048

81420047 ← → 81420049

2進数表記:100110110100101111100010000

漢数字表記:八千百四十二万四十八

素因数分解:

2 4 × 3 2 × 89 1 × 6353 1

素因数の和:6456
約数の個数: 60
約数和(自身を含む): 230459580
約数和(自身を除く): 149039532

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 89, 144, 178, 267, 356, 534, 712, 801, 1068, 1424, 1602, 2136, 3204, 4272, 6353, 6408, 12706, 12816, 19059, 25412, 38118, 50824, 57177, 76236, 101648, 114354, 152472, 228708, 304944, 457416, 565417, 914832, 1130834, 1696251, 2261668, 3392502, 4523336, 5088753, 6785004, 9046672, 10177506, 13570008, 20355012, 27140016, 40710024, 81420048]

約数ペア:
[(1, 81420048), (2, 40710024), (3, 27140016), (4, 20355012), (6, 13570008), (8, 10177506), (9, 9046672), (12, 6785004), (16, 5088753), (18, 4523336), (24, 3392502), (36, 2261668), (48, 1696251), (72, 1130834), (89, 914832), (144, 565417), (178, 457416), (267, 304944), (356, 228708), (534, 152472), (712, 114354), (801, 101648), (1068, 76236), (1424, 57177), (1602, 50824), (2136, 38118), (3204, 25412), (4272, 19059), (6353, 12816), (6408, 12706)]

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