28637805

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{829}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 54501120

約数和(自身を除く): 25863315

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 705, 735, 829, 987, 1645, 2303, 2487, 4145, 4935, 5803, 6909, 11515, 12435, 17409, 29015, 34545, 38963, 40621, 87045, 116889, 121863, 194815, 203105, 272741, 584445, 609315, 818223, 1363705, 1909187, 4091115, 5727561, 9545935, 28637805]

約数ペア:

[(1, 28637805), (3, 9545935), (5, 5727561), (7, 4091115), (15, 1909187), (21, 1363705), (35, 818223), (47, 609315), (49, 584445), (105, 272741), (141, 203105), (147, 194815), (235, 121863), (245, 116889), (329, 87045), (705, 40621), (735, 38963), (829, 34545), (987, 29015), (1645, 17409), (2303, 12435), (2487, 11515), (4145, 6909), (4935, 5803)]