1281775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 1785600

約数和(自身を除く): 503825

約数列:

[1, 5, 11, 25, 55, 59, 79, 275, 295, 395, 649, 869, 1475, 1975, 3245, 4345, 4661, 16225, 21725, 23305, 51271, 116525, 256355, 1281775]

約数ペア:

[(1, 1281775), (5, 256355), (11, 116525), (25, 51271), (55, 23305), (59, 21725), (79, 16225), (275, 4661), (295, 4345), (395, 3245), (649, 1975), (869, 1475)]