421521520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{293}}^1\times {\mathrm{367}}^1$

素因数の和:687

約数の個数: 120

約数和(自身を含む): 1147051584

約数和(自身を除く): 725530064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 293, 367, 392, 490, 560, 586, 734, 784, 980, 1172, 1465, 1468, 1835, 1960, 2051, 2344, 2569, 2930, 2936, 3670, 3920, 4102, 4688, 5138, 5860, 5872, 7340, 8204, 10255, 10276, 11720, 12845, 14357, 14680, 16408, 17983, 20510, 20552, 23440, 25690, 28714, 29360, 32816, 35966, 41020, 41104, 51380, 57428, 71785, 71932, 82040, 89915, 102760, 107531, 114856, 143570, 143864, 164080, 179830, 205520, 215062, 229712, 287140, 287728, 359660, 430124, 537655, 574280, 719320, 752717, 860248, 1075310, 1148560, 1438640, 1505434, 1720496, 2150620, 3010868, 3763585, 4301240, 5269019, 6021736, 7527170, 8602480, 10538038, 12043472, 15054340, 21076076, 26345095, 30108680, 42152152, 52690190, 60217360, 84304304, 105380380, 210760760, 421521520]

約数ペア:

[(1, 421521520), (2, 210760760), (4, 105380380), (5, 84304304), (7, 60217360), (8, 52690190), (10, 42152152), (14, 30108680), (16, 26345095), (20, 21076076), (28, 15054340), (35, 12043472), (40, 10538038), (49, 8602480), (56, 7527170), (70, 6021736), (80, 5269019), (98, 4301240), (112, 3763585), (140, 3010868), (196, 2150620), (245, 1720496), (280, 1505434), (293, 1438640), (367, 1148560), (392, 1075310), (490, 860248), (560, 752717), (586, 719320), (734, 574280), (784, 537655), (980, 430124), (1172, 359660), (1465, 287728), (1468, 287140), (1835, 229712), (1960, 215062), (2051, 205520), (2344, 179830), (2569, 164080), (2930, 143864), (2936, 143570), (3670, 114856), (3920, 107531), (4102, 102760), (4688, 89915), (5138, 82040), (5860, 71932), (5872, 71785), (7340, 57428), (8204, 51380), (10255, 41104), (10276, 41020), (11720, 35966), (12845, 32816), (14357, 29360), (14680, 28714), (16408, 25690), (17983, 23440), (20510, 20552)]