78401225

素因数分解:

$5^2\times 7^3\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 116659200

約数和(自身を除く): 38257975

約数列:

[1, 5, 7, 25, 35, 41, 49, 175, 205, 223, 245, 287, 343, 1025, 1115, 1225, 1435, 1561, 1715, 2009, 5575, 7175, 7805, 8575, 9143, 10045, 10927, 14063, 39025, 45715, 50225, 54635, 64001, 70315, 76489, 228575, 273175, 320005, 351575, 382445, 448007, 1600025, 1912225, 2240035, 3136049, 11200175, 15680245, 78401225]

約数ペア:

[(1, 78401225), (5, 15680245), (7, 11200175), (25, 3136049), (35, 2240035), (41, 1912225), (49, 1600025), (175, 448007), (205, 382445), (223, 351575), (245, 320005), (287, 273175), (343, 228575), (1025, 76489), (1115, 70315), (1225, 64001), (1435, 54635), (1561, 50225), (1715, 45715), (2009, 39025), (5575, 14063), (7175, 10927), (7805, 10045), (8575, 9143)]