13257440

素因数分解:

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

素因数の和:137

約数の個数: 144

約数和(自身を含む): 38782800

約数和(自身を除く): 25525360

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, 380, 392, 445, 490, 532, 560, 608, 623, 665, 712, 760, 784, 890, 931, 980, 1064, 1120, 1246, 1330, 1424, 1520, 1568, 1691, 1780, 1862, 1960, 2128, 2492, 2660, 2848, 3040, 3115, 3382, 3560, 3724, 3920, 4256, 4361, 4655, 4984, 5320, 6230, 6764, 7120, 7448, 7840, 8455, 8722, 9310, 9968, 10640, 11837, 12460, 13528, 14240, 14896, 16910, 17444, 18620, 19936, 21280, 21805, 23674, 24920, 27056, 29792, 33820, 34888, 37240, 43610, 47348, 49840, 54112, 59185, 67640, 69776, 74480, 82859, 87220, 94696, 99680, 118370, 135280, 139552, 148960, 165718, 174440, 189392, 236740, 270560, 331436, 348880, 378784, 414295, 473480, 662872, 697760, 828590, 946960, 1325744, 1657180, 1893920, 2651488, 3314360, 6628720, 13257440]

約数ペア:

[(1, 13257440), (2, 6628720), (4, 3314360), (5, 2651488), (7, 1893920), (8, 1657180), (10, 1325744), (14, 946960), (16, 828590), (19, 697760), (20, 662872), (28, 473480), (32, 414295), (35, 378784), (38, 348880), (40, 331436), (49, 270560), (56, 236740), (70, 189392), (76, 174440), (80, 165718), (89, 148960), (95, 139552), (98, 135280), (112, 118370), (133, 99680), (140, 94696), (152, 87220), (160, 82859), (178, 74480), (190, 69776), (196, 67640), (224, 59185), (245, 54112), (266, 49840), (280, 47348), (304, 43610), (356, 37240), (380, 34888), (392, 33820), (445, 29792), (490, 27056), (532, 24920), (560, 23674), (608, 21805), (623, 21280), (665, 19936), (712, 18620), (760, 17444), (784, 16910), (890, 14896), (931, 14240), (980, 13528), (1064, 12460), (1120, 11837), (1246, 10640), (1330, 9968), (1424, 9310), (1520, 8722), (1568, 8455), (1691, 7840), (1780, 7448), (1862, 7120), (1960, 6764), (2128, 6230), (2492, 5320), (2660, 4984), (2848, 4655), (3040, 4361), (3115, 4256), (3382, 3920), (3560, 3724)]