278316080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{70999}}^1$

素因数の和:71026

約数の個数: 60

約数和(自身を含む): 752742000

約数和(自身を除く): 474425920

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, 392, 490, 560, 784, 980, 1960, 3920, 70999, 141998, 283996, 354995, 496993, 567992, 709990, 993986, 1135984, 1419980, 1987972, 2484965, 2839960, 3478951, 3975944, 4969930, 5679920, 6957902, 7951888, 9939860, 13915804, 17394755, 19879720, 27831608, 34789510, 39759440, 55663216, 69579020, 139158040, 278316080]

約数ペア:

[(1, 278316080), (2, 139158040), (4, 69579020), (5, 55663216), (7, 39759440), (8, 34789510), (10, 27831608), (14, 19879720), (16, 17394755), (20, 13915804), (28, 9939860), (35, 7951888), (40, 6957902), (49, 5679920), (56, 4969930), (70, 3975944), (80, 3478951), (98, 2839960), (112, 2484965), (140, 1987972), (196, 1419980), (245, 1135984), (280, 993986), (392, 709990), (490, 567992), (560, 496993), (784, 354995), (980, 283996), (1960, 141998), (3920, 70999)]