28432040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 128

約数和(自身を含む): 80559360

約数和(自身を除く): 52127320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 73, 91, 104, 107, 130, 140, 146, 182, 214, 260, 280, 292, 364, 365, 428, 455, 511, 520, 535, 584, 728, 730, 749, 856, 910, 949, 1022, 1070, 1391, 1460, 1498, 1820, 1898, 2044, 2140, 2555, 2782, 2920, 2996, 3640, 3745, 3796, 4088, 4280, 4745, 5110, 5564, 5992, 6643, 6955, 7490, 7592, 7811, 9490, 9737, 10220, 11128, 13286, 13910, 14980, 15622, 18980, 19474, 20440, 26572, 27820, 29960, 31244, 33215, 37960, 38948, 39055, 48685, 53144, 54677, 55640, 62488, 66430, 77896, 78110, 97370, 101543, 109354, 132860, 156220, 194740, 203086, 218708, 265720, 273385, 312440, 389480, 406172, 437416, 507715, 546770, 710801, 812344, 1015430, 1093540, 1421602, 2030860, 2187080, 2843204, 3554005, 4061720, 5686408, 7108010, 14216020, 28432040]

約数ペア:

[(1, 28432040), (2, 14216020), (4, 7108010), (5, 5686408), (7, 4061720), (8, 3554005), (10, 2843204), (13, 2187080), (14, 2030860), (20, 1421602), (26, 1093540), (28, 1015430), (35, 812344), (40, 710801), (52, 546770), (56, 507715), (65, 437416), (70, 406172), (73, 389480), (91, 312440), (104, 273385), (107, 265720), (130, 218708), (140, 203086), (146, 194740), (182, 156220), (214, 132860), (260, 109354), (280, 101543), (292, 97370), (364, 78110), (365, 77896), (428, 66430), (455, 62488), (511, 55640), (520, 54677), (535, 53144), (584, 48685), (728, 39055), (730, 38948), (749, 37960), (856, 33215), (910, 31244), (949, 29960), (1022, 27820), (1070, 26572), (1391, 20440), (1460, 19474), (1498, 18980), (1820, 15622), (1898, 14980), (2044, 13910), (2140, 13286), (2555, 11128), (2782, 10220), (2920, 9737), (2996, 9490), (3640, 7811), (3745, 7592), (3796, 7490), (4088, 6955), (4280, 6643), (4745, 5992), (5110, 5564)]