311915020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{4253}}^1$

素因数の和:4474

約数の個数: 48

約数和(自身を含む): 693231840

約数和(自身を除く): 381316820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 380, 386, 772, 965, 1930, 3667, 3860, 4253, 7334, 8506, 14668, 17012, 18335, 21265, 36670, 42530, 73340, 80807, 85060, 161614, 323228, 404035, 808070, 820829, 1616140, 1641658, 3283316, 4104145, 8208290, 15595751, 16416580, 31191502, 62383004, 77978755, 155957510, 311915020]

約数ペア:

[(1, 311915020), (2, 155957510), (4, 77978755), (5, 62383004), (10, 31191502), (19, 16416580), (20, 15595751), (38, 8208290), (76, 4104145), (95, 3283316), (190, 1641658), (193, 1616140), (380, 820829), (386, 808070), (772, 404035), (965, 323228), (1930, 161614), (3667, 85060), (3860, 80807), (4253, 73340), (7334, 42530), (8506, 36670), (14668, 21265), (17012, 18335)]