28915975

素因数分解:

$5^2\times {\mathrm{11}}^4\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 30

約数和(自身を含む): 39940400

約数和(自身を除く): 11024425

約数列:

[1, 5, 11, 25, 55, 79, 121, 275, 395, 605, 869, 1331, 1975, 3025, 4345, 6655, 9559, 14641, 21725, 33275, 47795, 73205, 105149, 238975, 366025, 525745, 1156639, 2628725, 5783195, 28915975]

約数ペア:

[(1, 28915975), (5, 5783195), (11, 2628725), (25, 1156639), (55, 525745), (79, 366025), (121, 238975), (275, 105149), (395, 73205), (605, 47795), (869, 33275), (1331, 21725), (1975, 14641), (3025, 9559), (4345, 6655)]