3947440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 11450160

約数和(自身を除く): 7502720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 53, 56, 70, 76, 80, 95, 98, 106, 112, 133, 140, 152, 190, 196, 212, 245, 265, 266, 280, 304, 371, 380, 392, 424, 490, 530, 532, 560, 665, 742, 760, 784, 848, 931, 980, 1007, 1060, 1064, 1330, 1484, 1520, 1855, 1862, 1960, 2014, 2120, 2128, 2597, 2660, 2968, 3710, 3724, 3920, 4028, 4240, 4655, 5035, 5194, 5320, 5936, 7049, 7420, 7448, 8056, 9310, 10070, 10388, 10640, 12985, 14098, 14840, 14896, 16112, 18620, 20140, 20776, 25970, 28196, 29680, 35245, 37240, 40280, 41552, 49343, 51940, 56392, 70490, 74480, 80560, 98686, 103880, 112784, 140980, 197372, 207760, 246715, 281960, 394744, 493430, 563920, 789488, 986860, 1973720, 3947440]

約数ペア:

[(1, 3947440), (2, 1973720), (4, 986860), (5, 789488), (7, 563920), (8, 493430), (10, 394744), (14, 281960), (16, 246715), (19, 207760), (20, 197372), (28, 140980), (35, 112784), (38, 103880), (40, 98686), (49, 80560), (53, 74480), (56, 70490), (70, 56392), (76, 51940), (80, 49343), (95, 41552), (98, 40280), (106, 37240), (112, 35245), (133, 29680), (140, 28196), (152, 25970), (190, 20776), (196, 20140), (212, 18620), (245, 16112), (265, 14896), (266, 14840), (280, 14098), (304, 12985), (371, 10640), (380, 10388), (392, 10070), (424, 9310), (490, 8056), (530, 7448), (532, 7420), (560, 7049), (665, 5936), (742, 5320), (760, 5194), (784, 5035), (848, 4655), (931, 4240), (980, 4028), (1007, 3920), (1060, 3724), (1064, 3710), (1330, 2968), (1484, 2660), (1520, 2597), (1855, 2128), (1862, 2120), (1960, 2014)]