17778740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 44483712

約数和(自身を除く): 26704972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 151, 203, 290, 302, 406, 580, 604, 755, 812, 841, 1015, 1057, 1510, 1682, 2030, 2114, 3020, 3364, 4060, 4205, 4228, 4379, 5285, 5887, 8410, 8758, 10570, 11774, 16820, 17516, 21140, 21895, 23548, 29435, 30653, 43790, 58870, 61306, 87580, 117740, 122612, 126991, 153265, 253982, 306530, 507964, 613060, 634955, 888937, 1269910, 1777874, 2539820, 3555748, 4444685, 8889370, 17778740]

約数ペア:

[(1, 17778740), (2, 8889370), (4, 4444685), (5, 3555748), (7, 2539820), (10, 1777874), (14, 1269910), (20, 888937), (28, 634955), (29, 613060), (35, 507964), (58, 306530), (70, 253982), (116, 153265), (140, 126991), (145, 122612), (151, 117740), (203, 87580), (290, 61306), (302, 58870), (406, 43790), (580, 30653), (604, 29435), (755, 23548), (812, 21895), (841, 21140), (1015, 17516), (1057, 16820), (1510, 11774), (1682, 10570), (2030, 8758), (2114, 8410), (3020, 5887), (3364, 5285), (4060, 4379), (4205, 4228)]