212412475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 313479936

約数和(自身を除く): 101067461

約数列:

[1, 5, 11, 23, 25, 43, 55, 71, 115, 121, 215, 253, 275, 355, 473, 575, 605, 781, 989, 1075, 1265, 1633, 1775, 2365, 2783, 3025, 3053, 3905, 4945, 5203, 6325, 8165, 8591, 10879, 11825, 13915, 15265, 17963, 19525, 24725, 26015, 33583, 40825, 42955, 54395, 69575, 70219, 76325, 89815, 119669, 130075, 167915, 197593, 214775, 271975, 351095, 369413, 449075, 598345, 772409, 839575, 987965, 1755475, 1847065, 2991725, 3862045, 4939825, 8496499, 9235325, 19310225, 42482495, 212412475]

約数ペア:

[(1, 212412475), (5, 42482495), (11, 19310225), (23, 9235325), (25, 8496499), (43, 4939825), (55, 3862045), (71, 2991725), (115, 1847065), (121, 1755475), (215, 987965), (253, 839575), (275, 772409), (355, 598345), (473, 449075), (575, 369413), (605, 351095), (781, 271975), (989, 214775), (1075, 197593), (1265, 167915), (1633, 130075), (1775, 119669), (2365, 89815), (2783, 76325), (3025, 70219), (3053, 69575), (3905, 54395), (4945, 42955), (5203, 40825), (6325, 33583), (8165, 26015), (8591, 24725), (10879, 19525), (11825, 17963), (13915, 15265)]