About the Number

129242720

129242719 ← → 129242721

2進数表記:111101101000001011001100000

漢数字表記:一億二千九百二十四万二千七百二十

素因数分解:

2 5 × 5 1 × 31 1 × 71 1 × 367 1

素因数の和:484
約数の個数: 96
約数和(自身を含む): 320495616
約数和(自身を除く): 191252896

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 71, 80, 124, 142, 155, 160, 248, 284, 310, 355, 367, 496, 568, 620, 710, 734, 992, 1136, 1240, 1420, 1468, 1835, 2201, 2272, 2480, 2840, 2936, 3670, 4402, 4960, 5680, 5872, 7340, 8804, 11005, 11360, 11377, 11744, 14680, 17608, 22010, 22754, 26057, 29360, 35216, 44020, 45508, 52114, 56885, 58720, 70432, 88040, 91016, 104228, 113770, 130285, 176080, 182032, 208456, 227540, 260570, 352160, 364064, 416912, 455080, 521140, 807767, 833824, 910160, 1042280, 1615534, 1820320, 2084560, 3231068, 4038835, 4169120, 6462136, 8077670, 12924272, 16155340, 25848544, 32310680, 64621360, 129242720]

約数ペア:
[(1, 129242720), (2, 64621360), (4, 32310680), (5, 25848544), (8, 16155340), (10, 12924272), (16, 8077670), (20, 6462136), (31, 4169120), (32, 4038835), (40, 3231068), (62, 2084560), (71, 1820320), (80, 1615534), (124, 1042280), (142, 910160), (155, 833824), (160, 807767), (248, 521140), (284, 455080), (310, 416912), (355, 364064), (367, 352160), (496, 260570), (568, 227540), (620, 208456), (710, 182032), (734, 176080), (992, 130285), (1136, 113770), (1240, 104228), (1420, 91016), (1468, 88040), (1835, 70432), (2201, 58720), (2272, 56885), (2480, 52114), (2840, 45508), (2936, 44020), (3670, 35216), (4402, 29360), (4960, 26057), (5680, 22754), (5872, 22010), (7340, 17608), (8804, 14680), (11005, 11744), (11360, 11377)]

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