189998480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2551}}^1$

素因数の和:2597

約数の個数: 120

約数和(自身を含む): 541126080

約数和(自身を除く): 351127600

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, 490, 532, 560, 665, 760, 784, 931, 980, 1064, 1330, 1520, 1862, 1960, 2128, 2551, 2660, 3724, 3920, 4655, 5102, 5320, 7448, 9310, 10204, 10640, 12755, 14896, 17857, 18620, 20408, 25510, 35714, 37240, 40816, 48469, 51020, 71428, 74480, 89285, 96938, 102040, 124999, 142856, 178570, 193876, 204080, 242345, 249998, 285712, 339283, 357140, 387752, 484690, 499996, 624995, 678566, 714280, 775504, 969380, 999992, 1249990, 1357132, 1428560, 1696415, 1938760, 1999984, 2374981, 2499980, 2714264, 3392830, 3877520, 4749962, 4999960, 5428528, 6785660, 9499924, 9999920, 11874905, 13571320, 18999848, 23749810, 27142640, 37999696, 47499620, 94999240, 189998480]

約数ペア:

[(1, 189998480), (2, 94999240), (4, 47499620), (5, 37999696), (7, 27142640), (8, 23749810), (10, 18999848), (14, 13571320), (16, 11874905), (19, 9999920), (20, 9499924), (28, 6785660), (35, 5428528), (38, 4999960), (40, 4749962), (49, 3877520), (56, 3392830), (70, 2714264), (76, 2499980), (80, 2374981), (95, 1999984), (98, 1938760), (112, 1696415), (133, 1428560), (140, 1357132), (152, 1249990), (190, 999992), (196, 969380), (245, 775504), (266, 714280), (280, 678566), (304, 624995), (380, 499996), (392, 484690), (490, 387752), (532, 357140), (560, 339283), (665, 285712), (760, 249998), (784, 242345), (931, 204080), (980, 193876), (1064, 178570), (1330, 142856), (1520, 124999), (1862, 102040), (1960, 96938), (2128, 89285), (2551, 74480), (2660, 71428), (3724, 51020), (3920, 48469), (4655, 40816), (5102, 37240), (5320, 35714), (7448, 25510), (9310, 20408), (10204, 18620), (10640, 17857), (12755, 14896)]