28686690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{587}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 77051520

約数和(自身を除く): 48364830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 181, 270, 362, 543, 587, 905, 1086, 1174, 1629, 1761, 1810, 2715, 2935, 3258, 3522, 4887, 5283, 5430, 5870, 8145, 8805, 9774, 10566, 15849, 16290, 17610, 24435, 26415, 31698, 48870, 52830, 79245, 106247, 158490, 212494, 318741, 531235, 637482, 956223, 1062470, 1593705, 1912446, 2868669, 3187410, 4781115, 5737338, 9562230, 14343345, 28686690]

約数ペア:

[(1, 28686690), (2, 14343345), (3, 9562230), (5, 5737338), (6, 4781115), (9, 3187410), (10, 2868669), (15, 1912446), (18, 1593705), (27, 1062470), (30, 956223), (45, 637482), (54, 531235), (90, 318741), (135, 212494), (181, 158490), (270, 106247), (362, 79245), (543, 52830), (587, 48870), (905, 31698), (1086, 26415), (1174, 24435), (1629, 17610), (1761, 16290), (1810, 15849), (2715, 10566), (2935, 9774), (3258, 8805), (3522, 8145), (4887, 5870), (5283, 5430)]