28540785

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:167

約数の個数: 96

約数和(自身を含む): 59754240

約数和(自身を除く): 31213455

約数列:

[1, 3, 5, 7, 13, 15, 21, 29, 35, 39, 49, 65, 87, 91, 103, 105, 145, 147, 195, 203, 245, 273, 309, 377, 435, 455, 515, 609, 637, 721, 735, 1015, 1131, 1339, 1365, 1421, 1545, 1885, 1911, 2163, 2639, 2987, 3045, 3185, 3605, 4017, 4263, 5047, 5655, 6695, 7105, 7917, 8961, 9373, 9555, 10815, 13195, 14935, 15141, 18473, 20085, 20909, 21315, 25235, 28119, 38831, 39585, 44805, 46865, 55419, 62727, 65611, 75705, 92365, 104545, 116493, 140595, 146363, 194155, 196833, 271817, 277095, 313635, 328055, 439089, 582465, 731815, 815451, 984165, 1359085, 1902719, 2195445, 4077255, 5708157, 9513595, 28540785]

約数ペア:

[(1, 28540785), (3, 9513595), (5, 5708157), (7, 4077255), (13, 2195445), (15, 1902719), (21, 1359085), (29, 984165), (35, 815451), (39, 731815), (49, 582465), (65, 439089), (87, 328055), (91, 313635), (103, 277095), (105, 271817), (145, 196833), (147, 194155), (195, 146363), (203, 140595), (245, 116493), (273, 104545), (309, 92365), (377, 75705), (435, 65611), (455, 62727), (515, 55419), (609, 46865), (637, 44805), (721, 39585), (735, 38831), (1015, 28119), (1131, 25235), (1339, 21315), (1365, 20909), (1421, 20085), (1545, 18473), (1885, 15141), (1911, 14935), (2163, 13195), (2639, 10815), (2987, 9555), (3045, 9373), (3185, 8961), (3605, 7917), (4017, 7105), (4263, 6695), (5047, 5655)]