4479440

素因数分解:

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

素因数の和:460

約数の個数: 80

約数和(自身を含む): 12558720

約数和(自身を除く): 8079280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 421, 532, 560, 665, 760, 842, 1064, 1330, 1520, 1684, 2105, 2128, 2660, 2947, 3368, 4210, 5320, 5894, 6736, 7999, 8420, 10640, 11788, 14735, 15998, 16840, 23576, 29470, 31996, 33680, 39995, 47152, 55993, 58940, 63992, 79990, 111986, 117880, 127984, 159980, 223972, 235760, 279965, 319960, 447944, 559930, 639920, 895888, 1119860, 2239720, 4479440]

約数ペア:

[(1, 4479440), (2, 2239720), (4, 1119860), (5, 895888), (7, 639920), (8, 559930), (10, 447944), (14, 319960), (16, 279965), (19, 235760), (20, 223972), (28, 159980), (35, 127984), (38, 117880), (40, 111986), (56, 79990), (70, 63992), (76, 58940), (80, 55993), (95, 47152), (112, 39995), (133, 33680), (140, 31996), (152, 29470), (190, 23576), (266, 16840), (280, 15998), (304, 14735), (380, 11788), (421, 10640), (532, 8420), (560, 7999), (665, 6736), (760, 5894), (842, 5320), (1064, 4210), (1330, 3368), (1520, 2947), (1684, 2660), (2105, 2128)]