311948420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{11197}}^1$

素因数の和:11412

約数の個数: 48

約数和(自身を含む): 752505600

約数和(自身を除く): 440557180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 11197, 13930, 22394, 27860, 44788, 55985, 78379, 111970, 156758, 223940, 313516, 391895, 783790, 1567580, 2228203, 4456406, 8912812, 11141015, 15597421, 22282030, 31194842, 44564060, 62389684, 77987105, 155974210, 311948420]

約数ペア:

[(1, 311948420), (2, 155974210), (4, 77987105), (5, 62389684), (7, 44564060), (10, 31194842), (14, 22282030), (20, 15597421), (28, 11141015), (35, 8912812), (70, 4456406), (140, 2228203), (199, 1567580), (398, 783790), (796, 391895), (995, 313516), (1393, 223940), (1990, 156758), (2786, 111970), (3980, 78379), (5572, 55985), (6965, 44788), (11197, 27860), (13930, 22394)]