1239978880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{276781}}^1$

素因数の和:276807

約数の個数: 64

約数和(自身を含む): 3387811680

約数和(自身を除く): 2147832800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 276781, 553562, 1107124, 1383905, 1937467, 2214248, 2767810, 3874934, 4428496, 5535620, 7749868, 8856992, 9687335, 11071240, 15499736, 17713984, 19374670, 22142480, 30999472, 35427968, 38749340, 44284960, 61998944, 77498680, 88569920, 123997888, 154997360, 177139840, 247995776, 309994720, 619989440, 1239978880]

約数ペア:

[(1, 1239978880), (2, 619989440), (4, 309994720), (5, 247995776), (7, 177139840), (8, 154997360), (10, 123997888), (14, 88569920), (16, 77498680), (20, 61998944), (28, 44284960), (32, 38749340), (35, 35427968), (40, 30999472), (56, 22142480), (64, 19374670), (70, 17713984), (80, 15499736), (112, 11071240), (128, 9687335), (140, 8856992), (160, 7749868), (224, 5535620), (280, 4428496), (320, 3874934), (448, 2767810), (560, 2214248), (640, 1937467), (896, 1383905), (1120, 1107124), (2240, 553562), (4480, 276781)]