129640975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1601}}^1$

素因数の和:1731

約数の個数: 24

約数和(自身を含む): 166864320

約数和(自身を除く): 37223345

約数列:

[1, 5, 25, 41, 79, 205, 395, 1025, 1601, 1975, 3239, 8005, 16195, 40025, 65641, 80975, 126479, 328205, 632395, 1641025, 3161975, 5185639, 25928195, 129640975]

約数ペア:

[(1, 129640975), (5, 25928195), (25, 5185639), (41, 3161975), (79, 1641025), (205, 632395), (395, 328205), (1025, 126479), (1601, 80975), (1975, 65641), (3239, 40025), (8005, 16195)]