About the Number

128918508765

128918508764 ← → 128918508766

2進数表記:1111000000100001001000101010011011101

漢数字表記:千二百八十九億千八百五十万八千七百六十五

素因数分解:

3 1 × 5 1 × 23 2 × 43 1 × 47 1 × 8039 1

素因数の和:8183
約数の個数: 96
約数和(自身を含む): 225364930560
約数和(自身を除く): 96446421795

約数列:
[1, 3, 5, 15, 23, 43, 47, 69, 115, 129, 141, 215, 235, 345, 529, 645, 705, 989, 1081, 1587, 2021, 2645, 2967, 3243, 4945, 5405, 6063, 7935, 8039, 10105, 14835, 16215, 22747, 24117, 24863, 30315, 40195, 46483, 68241, 74589, 113735, 120585, 124315, 139449, 184897, 232415, 341205, 345677, 372945, 377833, 554691, 697245, 924485, 1037031, 1069109, 1133499, 1728385, 1889165, 2773455, 3207327, 4252631, 5185155, 5345545, 5667495, 7950571, 8690159, 12757893, 16036635, 16246819, 21263155, 23851713, 26070477, 39752855, 43450795, 48740457, 63789465, 81234095, 119258565, 130352385, 182863133, 199873657, 243702285, 373676837, 548589399, 599620971, 914315665, 999368285, 1121030511, 1868384185, 2742946995, 2998104855, 5605152555, 8594567251, 25783701753, 42972836255, 128918508765]

約数ペア:
[(1, 128918508765), (3, 42972836255), (5, 25783701753), (15, 8594567251), (23, 5605152555), (43, 2998104855), (47, 2742946995), (69, 1868384185), (115, 1121030511), (129, 999368285), (141, 914315665), (215, 599620971), (235, 548589399), (345, 373676837), (529, 243702285), (645, 199873657), (705, 182863133), (989, 130352385), (1081, 119258565), (1587, 81234095), (2021, 63789465), (2645, 48740457), (2967, 43450795), (3243, 39752855), (4945, 26070477), (5405, 23851713), (6063, 21263155), (7935, 16246819), (8039, 16036635), (10105, 12757893), (14835, 8690159), (16215, 7950571), (22747, 5667495), (24117, 5345545), (24863, 5185155), (30315, 4252631), (40195, 3207327), (46483, 2773455), (68241, 1889165), (74589, 1728385), (113735, 1133499), (120585, 1069109), (124315, 1037031), (139449, 924485), (184897, 697245), (232415, 554691), (341205, 377833), (345677, 372945)]

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