1287832225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{18671}}^1$

素因数の和:18801

約数の個数: 24

約数和(自身を含む): 1667036160

約数和(自身を除く): 379203935

約数列:

[1, 5, 25, 31, 89, 155, 445, 775, 2225, 2759, 13795, 18671, 68975, 93355, 466775, 578801, 1661719, 2894005, 8308595, 14470025, 41542975, 51513289, 257566445, 1287832225]

約数ペア:

[(1, 1287832225), (5, 257566445), (25, 51513289), (31, 41542975), (89, 14470025), (155, 8308595), (445, 2894005), (775, 1661719), (2225, 578801), (2759, 466775), (13795, 93355), (18671, 68975)]