About the Number

129638640

129638639 ← → 129638641

2進数表記:111101110100010000011110000

漢数字表記:一億二千九百六十三万八千六百四十

素因数分解:

2 4 × 3 1 × 5 1 × 727 1 × 743 1

素因数の和:1486
約数の個数: 80
約数和(自身を含む): 402974208
約数和(自身を除く): 273335568

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 727, 743, 1454, 1486, 2181, 2229, 2908, 2972, 3635, 3715, 4362, 4458, 5816, 5944, 7270, 7430, 8724, 8916, 10905, 11145, 11632, 11888, 14540, 14860, 17448, 17832, 21810, 22290, 29080, 29720, 34896, 35664, 43620, 44580, 58160, 59440, 87240, 89160, 174480, 178320, 540161, 1080322, 1620483, 2160644, 2700805, 3240966, 4321288, 5401610, 6481932, 8102415, 8642576, 10803220, 12963864, 16204830, 21606440, 25927728, 32409660, 43212880, 64819320, 129638640]

約数ペア:
[(1, 129638640), (2, 64819320), (3, 43212880), (4, 32409660), (5, 25927728), (6, 21606440), (8, 16204830), (10, 12963864), (12, 10803220), (15, 8642576), (16, 8102415), (20, 6481932), (24, 5401610), (30, 4321288), (40, 3240966), (48, 2700805), (60, 2160644), (80, 1620483), (120, 1080322), (240, 540161), (727, 178320), (743, 174480), (1454, 89160), (1486, 87240), (2181, 59440), (2229, 58160), (2908, 44580), (2972, 43620), (3635, 35664), (3715, 34896), (4362, 29720), (4458, 29080), (5816, 22290), (5944, 21810), (7270, 17832), (7430, 17448), (8724, 14860), (8916, 14540), (10905, 11888), (11145, 11632)]

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