251019790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2971}}^1$

素因数の和:3073

約数の個数: 64

約数和(自身を含む): 554646528

約数和(自身を除く): 303626738

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 71, 85, 119, 142, 170, 238, 355, 497, 595, 710, 994, 1190, 1207, 2414, 2485, 2971, 4970, 5942, 6035, 8449, 12070, 14855, 16898, 20797, 29710, 41594, 42245, 50507, 84490, 101014, 103985, 207970, 210941, 252535, 353549, 421882, 505070, 707098, 1054705, 1476587, 1767745, 2109410, 2953174, 3535490, 3585997, 7171994, 7382935, 14765870, 17929985, 25101979, 35859970, 50203958, 125509895, 251019790]

約数ペア:

[(1, 251019790), (2, 125509895), (5, 50203958), (7, 35859970), (10, 25101979), (14, 17929985), (17, 14765870), (34, 7382935), (35, 7171994), (70, 3585997), (71, 3535490), (85, 2953174), (119, 2109410), (142, 1767745), (170, 1476587), (238, 1054705), (355, 707098), (497, 505070), (595, 421882), (710, 353549), (994, 252535), (1190, 210941), (1207, 207970), (2414, 103985), (2485, 101014), (2971, 84490), (4970, 50507), (5942, 42245), (6035, 41594), (8449, 29710), (12070, 20797), (14855, 16898)]