28711690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 61585920

約数和(自身を除く): 32874230

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 71, 106, 109, 142, 218, 265, 355, 371, 497, 530, 545, 710, 742, 763, 994, 1090, 1526, 1855, 2485, 3710, 3763, 3815, 4970, 5777, 7526, 7630, 7739, 11554, 15478, 18815, 26341, 28885, 37630, 38695, 40439, 52682, 54173, 57770, 77390, 80878, 108346, 131705, 202195, 263410, 270865, 404390, 410167, 541730, 820334, 2050835, 2871169, 4101670, 5742338, 14355845, 28711690]

約数ペア:

[(1, 28711690), (2, 14355845), (5, 5742338), (7, 4101670), (10, 2871169), (14, 2050835), (35, 820334), (53, 541730), (70, 410167), (71, 404390), (106, 270865), (109, 263410), (142, 202195), (218, 131705), (265, 108346), (355, 80878), (371, 77390), (497, 57770), (530, 54173), (545, 52682), (710, 40439), (742, 38695), (763, 37630), (994, 28885), (1090, 26341), (1526, 18815), (1855, 15478), (2485, 11554), (3710, 7739), (3763, 7630), (3815, 7526), (4970, 5777)]