15938720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 46539360

約数和(自身を除く): 30600640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 107, 112, 133, 140, 152, 160, 190, 196, 214, 224, 245, 266, 280, 304, 380, 392, 428, 490, 532, 535, 560, 608, 665, 749, 760, 784, 856, 931, 980, 1064, 1070, 1120, 1330, 1498, 1520, 1568, 1712, 1862, 1960, 2033, 2128, 2140, 2660, 2996, 3040, 3424, 3724, 3745, 3920, 4066, 4256, 4280, 4655, 5243, 5320, 5992, 7448, 7490, 7840, 8132, 8560, 9310, 10165, 10486, 10640, 11984, 14231, 14896, 14980, 16264, 17120, 18620, 20330, 20972, 21280, 23968, 26215, 28462, 29792, 29960, 32528, 37240, 40660, 41944, 52430, 56924, 59920, 65056, 71155, 74480, 81320, 83888, 99617, 104860, 113848, 119840, 142310, 148960, 162640, 167776, 199234, 209720, 227696, 284620, 325280, 398468, 419440, 455392, 498085, 569240, 796936, 838880, 996170, 1138480, 1593872, 1992340, 2276960, 3187744, 3984680, 7969360, 15938720]

約数ペア:

[(1, 15938720), (2, 7969360), (4, 3984680), (5, 3187744), (7, 2276960), (8, 1992340), (10, 1593872), (14, 1138480), (16, 996170), (19, 838880), (20, 796936), (28, 569240), (32, 498085), (35, 455392), (38, 419440), (40, 398468), (49, 325280), (56, 284620), (70, 227696), (76, 209720), (80, 199234), (95, 167776), (98, 162640), (107, 148960), (112, 142310), (133, 119840), (140, 113848), (152, 104860), (160, 99617), (190, 83888), (196, 81320), (214, 74480), (224, 71155), (245, 65056), (266, 59920), (280, 56924), (304, 52430), (380, 41944), (392, 40660), (428, 37240), (490, 32528), (532, 29960), (535, 29792), (560, 28462), (608, 26215), (665, 23968), (749, 21280), (760, 20972), (784, 20330), (856, 18620), (931, 17120), (980, 16264), (1064, 14980), (1070, 14896), (1120, 14231), (1330, 11984), (1498, 10640), (1520, 10486), (1568, 10165), (1712, 9310), (1862, 8560), (1960, 8132), (2033, 7840), (2128, 7490), (2140, 7448), (2660, 5992), (2996, 5320), (3040, 5243), (3424, 4655), (3724, 4280), (3745, 4256), (3920, 4066)]