About the Number

129281390

129281389 ← → 129281391

2進数表記:111101101001010110101101110

漢数字表記:一億二千九百二十八万千三百九十

素因数分解:

2 1 × 5 1 × 7 1 × 23 1 × 59 1 × 1361 1

素因数の和:1457
約数の個数: 64
約数和(自身を含む): 282424320
約数和(自身を除く): 153142930

約数列:
[1, 2, 5, 7, 10, 14, 23, 35, 46, 59, 70, 115, 118, 161, 230, 295, 322, 413, 590, 805, 826, 1357, 1361, 1610, 2065, 2714, 2722, 4130, 6785, 6805, 9499, 9527, 13570, 13610, 18998, 19054, 31303, 47495, 47635, 62606, 80299, 94990, 95270, 156515, 160598, 219121, 313030, 401495, 438242, 562093, 802990, 1095605, 1124186, 1846877, 2191210, 2810465, 3693754, 5620930, 9234385, 12928139, 18468770, 25856278, 64640695, 129281390]

約数ペア:
[(1, 129281390), (2, 64640695), (5, 25856278), (7, 18468770), (10, 12928139), (14, 9234385), (23, 5620930), (35, 3693754), (46, 2810465), (59, 2191210), (70, 1846877), (115, 1124186), (118, 1095605), (161, 802990), (230, 562093), (295, 438242), (322, 401495), (413, 313030), (590, 219121), (805, 160598), (826, 156515), (1357, 95270), (1361, 94990), (1610, 80299), (2065, 62606), (2714, 47635), (2722, 47495), (4130, 31303), (6785, 19054), (6805, 18998), (9499, 13610), (9527, 13570)]

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