280519225

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 408830976

約数和(自身を除く): 128311751

約数列:

[1, 5, 7, 25, 35, 71, 107, 175, 211, 355, 497, 535, 749, 1055, 1477, 1775, 2485, 2675, 3745, 5275, 7385, 7597, 12425, 14981, 18725, 22577, 36925, 37985, 53179, 74905, 104867, 112885, 158039, 189925, 265895, 374525, 524335, 564425, 790195, 1329475, 1602967, 2621675, 3950975, 8014835, 11220769, 40074175, 56103845, 280519225]

約数ペア:

[(1, 280519225), (5, 56103845), (7, 40074175), (25, 11220769), (35, 8014835), (71, 3950975), (107, 2621675), (175, 1602967), (211, 1329475), (355, 790195), (497, 564425), (535, 524335), (749, 374525), (1055, 265895), (1477, 189925), (1775, 158039), (2485, 112885), (2675, 104867), (3745, 74905), (5275, 53179), (7385, 37985), (7597, 36925), (12425, 22577), (14981, 18725)]