31356080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:467

約数の個数: 120

約数和(自身を含む): 89480880

約数和(自身を除く): 58124800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 421, 490, 532, 560, 665, 760, 784, 842, 931, 980, 1064, 1330, 1520, 1684, 1862, 1960, 2105, 2128, 2660, 2947, 3368, 3724, 3920, 4210, 4655, 5320, 5894, 6736, 7448, 7999, 8420, 9310, 10640, 11788, 14735, 14896, 15998, 16840, 18620, 20629, 23576, 29470, 31996, 33680, 37240, 39995, 41258, 47152, 55993, 58940, 63992, 74480, 79990, 82516, 103145, 111986, 117880, 127984, 159980, 165032, 206290, 223972, 235760, 279965, 319960, 330064, 391951, 412580, 447944, 559930, 639920, 783902, 825160, 895888, 1119860, 1567804, 1650320, 1959755, 2239720, 3135608, 3919510, 4479440, 6271216, 7839020, 15678040, 31356080]

約数ペア:

[(1, 31356080), (2, 15678040), (4, 7839020), (5, 6271216), (7, 4479440), (8, 3919510), (10, 3135608), (14, 2239720), (16, 1959755), (19, 1650320), (20, 1567804), (28, 1119860), (35, 895888), (38, 825160), (40, 783902), (49, 639920), (56, 559930), (70, 447944), (76, 412580), (80, 391951), (95, 330064), (98, 319960), (112, 279965), (133, 235760), (140, 223972), (152, 206290), (190, 165032), (196, 159980), (245, 127984), (266, 117880), (280, 111986), (304, 103145), (380, 82516), (392, 79990), (421, 74480), (490, 63992), (532, 58940), (560, 55993), (665, 47152), (760, 41258), (784, 39995), (842, 37240), (931, 33680), (980, 31996), (1064, 29470), (1330, 23576), (1520, 20629), (1684, 18620), (1862, 16840), (1960, 15998), (2105, 14896), (2128, 14735), (2660, 11788), (2947, 10640), (3368, 9310), (3724, 8420), (3920, 7999), (4210, 7448), (4655, 6736), (5320, 5894)]