28220990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1123}}^1$

素因数の和:1496

約数の個数: 32

約数和(自身を含む): 58268160

約数和(自身を除く): 30047170

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 359, 718, 1123, 1795, 2246, 2513, 3590, 5026, 5615, 7861, 11230, 12565, 15722, 25130, 39305, 78610, 403157, 806314, 2015785, 2822099, 4031570, 5644198, 14110495, 28220990]

約数ペア:

[(1, 28220990), (2, 14110495), (5, 5644198), (7, 4031570), (10, 2822099), (14, 2015785), (35, 806314), (70, 403157), (359, 78610), (718, 39305), (1123, 25130), (1795, 15722), (2246, 12565), (2513, 11230), (3590, 7861), (5026, 5615)]