About the Number

387381540

387381539 ← → 387381541

2進数表記:10111000101101111100100100100

漢数字表記:三億八千七百三十八万千五百四十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 13 1 × 70949 1

素因数の和:70981
約数の個数: 96
約数和(自身を含む): 1334995200
約数和(自身を除く): 947613660

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 70949, 141898, 212847, 283796, 354745, 425694, 496643, 709490, 851388, 922337, 993286, 1064235, 1418980, 1489929, 1844674, 1986572, 2128470, 2483215, 2767011, 2979858, 3689348, 4256940, 4611685, 4966430, 5534022, 5959716, 6456359, 7449645, 9223370, 9932860, 11068044, 12912718, 13835055, 14899290, 18446740, 19369077, 25825436, 27670110, 29798580, 32281795, 38738154, 55340220, 64563590, 77476308, 96845385, 129127180, 193690770, 387381540]

約数ペア:
[(1, 387381540), (2, 193690770), (3, 129127180), (4, 96845385), (5, 77476308), (6, 64563590), (7, 55340220), (10, 38738154), (12, 32281795), (13, 29798580), (14, 27670110), (15, 25825436), (20, 19369077), (21, 18446740), (26, 14899290), (28, 13835055), (30, 12912718), (35, 11068044), (39, 9932860), (42, 9223370), (52, 7449645), (60, 6456359), (65, 5959716), (70, 5534022), (78, 4966430), (84, 4611685), (91, 4256940), (105, 3689348), (130, 2979858), (140, 2767011), (156, 2483215), (182, 2128470), (195, 1986572), (210, 1844674), (260, 1489929), (273, 1418980), (364, 1064235), (390, 993286), (420, 922337), (455, 851388), (546, 709490), (780, 496643), (910, 425694), (1092, 354745), (1365, 283796), (1820, 212847), (2730, 141898), (5460, 70949)]

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