251891360

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 216

約数和(自身を含む): 738812340

約数和(自身を除く): 486920980

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 89, 95, 98, 112, 133, 140, 152, 160, 178, 190, 196, 224, 245, 266, 280, 304, 356, 361, 380, 392, 445, 490, 532, 560, 608, 623, 665, 712, 722, 760, 784, 890, 931, 980, 1064, 1120, 1246, 1330, 1424, 1444, 1520, 1568, 1691, 1780, 1805, 1862, 1960, 2128, 2492, 2527, 2660, 2848, 2888, 3040, 3115, 3382, 3560, 3610, 3724, 3920, 4256, 4361, 4655, 4984, 5054, 5320, 5776, 6230, 6764, 7120, 7220, 7448, 7840, 8455, 8722, 9310, 9968, 10108, 10640, 11552, 11837, 12460, 12635, 13528, 14240, 14440, 14896, 16910, 17444, 17689, 18620, 19936, 20216, 21280, 21805, 23674, 24920, 25270, 27056, 28880, 29792, 32129, 33820, 34888, 35378, 37240, 40432, 43610, 47348, 49840, 50540, 54112, 57760, 59185, 64258, 67640, 69776, 70756, 74480, 80864, 82859, 87220, 88445, 94696, 99680, 101080, 118370, 128516, 135280, 139552, 141512, 148960, 160645, 165718, 174440, 176890, 189392, 202160, 224903, 236740, 257032, 270560, 283024, 321290, 331436, 348880, 353780, 378784, 404320, 414295, 449806, 473480, 514064, 566048, 642580, 662872, 697760, 707560, 828590, 899612, 946960, 1028128, 1124515, 1285160, 1325744, 1415120, 1574321, 1657180, 1799224, 1893920, 2249030, 2570320, 2651488, 2830240, 3148642, 3314360, 3598448, 4498060, 5140640, 6297284, 6628720, 7196896, 7871605, 8996120, 12594568, 13257440, 15743210, 17992240, 25189136, 31486420, 35984480, 50378272, 62972840, 125945680, 251891360]

約数ペア:

[(1, 251891360), (2, 125945680), (4, 62972840), (5, 50378272), (7, 35984480), (8, 31486420), (10, 25189136), (14, 17992240), (16, 15743210), (19, 13257440), (20, 12594568), (28, 8996120), (32, 7871605), (35, 7196896), (38, 6628720), (40, 6297284), (49, 5140640), (56, 4498060), (70, 3598448), (76, 3314360), (80, 3148642), (89, 2830240), (95, 2651488), (98, 2570320), (112, 2249030), (133, 1893920), (140, 1799224), (152, 1657180), (160, 1574321), (178, 1415120), (190, 1325744), (196, 1285160), (224, 1124515), (245, 1028128), (266, 946960), (280, 899612), (304, 828590), (356, 707560), (361, 697760), (380, 662872), (392, 642580), (445, 566048), (490, 514064), (532, 473480), (560, 449806), (608, 414295), (623, 404320), (665, 378784), (712, 353780), (722, 348880), (760, 331436), (784, 321290), (890, 283024), (931, 270560), (980, 257032), (1064, 236740), (1120, 224903), (1246, 202160), (1330, 189392), (1424, 176890), (1444, 174440), (1520, 165718), (1568, 160645), (1691, 148960), (1780, 141512), (1805, 139552), (1862, 135280), (1960, 128516), (2128, 118370), (2492, 101080), (2527, 99680), (2660, 94696), (2848, 88445), (2888, 87220), (3040, 82859), (3115, 80864), (3382, 74480), (3560, 70756), (3610, 69776), (3724, 67640), (3920, 64258), (4256, 59185), (4361, 57760), (4655, 54112), (4984, 50540), (5054, 49840), (5320, 47348), (5776, 43610), (6230, 40432), (6764, 37240), (7120, 35378), (7220, 34888), (7448, 33820), (7840, 32129), (8455, 29792), (8722, 28880), (9310, 27056), (9968, 25270), (10108, 24920), (10640, 23674), (11552, 21805), (11837, 21280), (12460, 20216), (12635, 19936), (13528, 18620), (14240, 17689), (14440, 17444), (14896, 16910)]