19045025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 24756600

約数和(自身を除く): 5711575

約数列:

[1, 5, 25, 29, 109, 145, 241, 545, 725, 1205, 2725, 3161, 6025, 6989, 15805, 26269, 34945, 79025, 131345, 174725, 656725, 761801, 3809005, 19045025]

約数ペア:

[(1, 19045025), (5, 3809005), (25, 761801), (29, 656725), (109, 174725), (145, 131345), (241, 79025), (545, 34945), (725, 26269), (1205, 15805), (2725, 6989), (3161, 6025)]