247140040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:311

約数の個数: 128

約数和(自身を含む): 655983360

約数和(自身を除く): 408843320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 107, 113, 140, 146, 214, 226, 280, 292, 365, 428, 452, 511, 535, 565, 584, 730, 749, 791, 856, 904, 1022, 1070, 1130, 1460, 1498, 1582, 2044, 2140, 2260, 2555, 2920, 2996, 3164, 3745, 3955, 4088, 4280, 4520, 5110, 5992, 6328, 7490, 7811, 7910, 8249, 10220, 12091, 14980, 15622, 15820, 16498, 20440, 24182, 29960, 31244, 31640, 32996, 39055, 41245, 48364, 54677, 57743, 60455, 62488, 65992, 78110, 82490, 84637, 96728, 109354, 115486, 120910, 156220, 164980, 169274, 218708, 230972, 241820, 273385, 288715, 312440, 329960, 338548, 423185, 437416, 461944, 483640, 546770, 577430, 677096, 846370, 882643, 1093540, 1154860, 1692740, 1765286, 2187080, 2309720, 3385480, 3530572, 4413215, 6178501, 7061144, 8826430, 12357002, 17652860, 24714004, 30892505, 35305720, 49428008, 61785010, 123570020, 247140040]

約数ペア:

[(1, 247140040), (2, 123570020), (4, 61785010), (5, 49428008), (7, 35305720), (8, 30892505), (10, 24714004), (14, 17652860), (20, 12357002), (28, 8826430), (35, 7061144), (40, 6178501), (56, 4413215), (70, 3530572), (73, 3385480), (107, 2309720), (113, 2187080), (140, 1765286), (146, 1692740), (214, 1154860), (226, 1093540), (280, 882643), (292, 846370), (365, 677096), (428, 577430), (452, 546770), (511, 483640), (535, 461944), (565, 437416), (584, 423185), (730, 338548), (749, 329960), (791, 312440), (856, 288715), (904, 273385), (1022, 241820), (1070, 230972), (1130, 218708), (1460, 169274), (1498, 164980), (1582, 156220), (2044, 120910), (2140, 115486), (2260, 109354), (2555, 96728), (2920, 84637), (2996, 82490), (3164, 78110), (3745, 65992), (3955, 62488), (4088, 60455), (4280, 57743), (4520, 54677), (5110, 48364), (5992, 41245), (6328, 39055), (7490, 32996), (7811, 31640), (7910, 31244), (8249, 29960), (10220, 24182), (12091, 20440), (14980, 16498), (15622, 15820)]