128555840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2032

約数の個数: 112

約数和(自身を含む): 362102400

約数和(自身を除く): 233546560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 320, 406, 448, 464, 560, 580, 812, 928, 1015, 1120, 1160, 1624, 1856, 1979, 2030, 2240, 2320, 3248, 3958, 4060, 4640, 6496, 7916, 8120, 9280, 9895, 12992, 13853, 15832, 16240, 19790, 27706, 31664, 32480, 39580, 55412, 57391, 63328, 64960, 69265, 79160, 110824, 114782, 126656, 138530, 158320, 221648, 229564, 277060, 286955, 316640, 401737, 443296, 459128, 554120, 573910, 633280, 803474, 886592, 918256, 1108240, 1147820, 1606948, 1836512, 2008685, 2216480, 2295640, 3213896, 3673024, 4017370, 4432960, 4591280, 6427792, 8034740, 9182560, 12855584, 16069480, 18365120, 25711168, 32138960, 64277920, 128555840]

約数ペア:

[(1, 128555840), (2, 64277920), (4, 32138960), (5, 25711168), (7, 18365120), (8, 16069480), (10, 12855584), (14, 9182560), (16, 8034740), (20, 6427792), (28, 4591280), (29, 4432960), (32, 4017370), (35, 3673024), (40, 3213896), (56, 2295640), (58, 2216480), (64, 2008685), (70, 1836512), (80, 1606948), (112, 1147820), (116, 1108240), (140, 918256), (145, 886592), (160, 803474), (203, 633280), (224, 573910), (232, 554120), (280, 459128), (290, 443296), (320, 401737), (406, 316640), (448, 286955), (464, 277060), (560, 229564), (580, 221648), (812, 158320), (928, 138530), (1015, 126656), (1120, 114782), (1160, 110824), (1624, 79160), (1856, 69265), (1979, 64960), (2030, 63328), (2240, 57391), (2320, 55412), (3248, 39580), (3958, 32480), (4060, 31664), (4640, 27706), (6496, 19790), (7916, 16240), (8120, 15832), (9280, 13853), (9895, 12992)]