28947765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 58724352

約数和(自身を除く): 29776587

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 71, 77, 105, 165, 213, 231, 353, 355, 385, 497, 781, 1059, 1065, 1155, 1491, 1765, 2343, 2471, 2485, 3883, 3905, 5295, 5467, 7413, 7455, 11649, 11715, 12355, 16401, 19415, 25063, 27181, 27335, 37065, 58245, 75189, 81543, 82005, 125315, 135905, 175441, 275693, 375945, 407715, 526323, 827079, 877205, 1378465, 1929851, 2631615, 4135395, 5789553, 9649255, 28947765]

約数ペア:

[(1, 28947765), (3, 9649255), (5, 5789553), (7, 4135395), (11, 2631615), (15, 1929851), (21, 1378465), (33, 877205), (35, 827079), (55, 526323), (71, 407715), (77, 375945), (105, 275693), (165, 175441), (213, 135905), (231, 125315), (353, 82005), (355, 81543), (385, 75189), (497, 58245), (781, 37065), (1059, 27335), (1065, 27181), (1155, 25063), (1491, 19415), (1765, 16401), (2343, 12355), (2471, 11715), (2485, 11649), (3883, 7455), (3905, 7413), (5295, 5467)]