55438490

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 101621520

約数和(自身を除く): 46183030

約数列:

[1, 2, 5, 10, 109, 181, 218, 281, 362, 545, 562, 905, 1090, 1405, 1810, 2810, 19729, 30629, 39458, 50861, 61258, 98645, 101722, 153145, 197290, 254305, 306290, 508610, 5543849, 11087698, 27719245, 55438490]

約数ペア:

[(1, 55438490), (2, 27719245), (5, 11087698), (10, 5543849), (109, 508610), (181, 306290), (218, 254305), (281, 197290), (362, 153145), (545, 101722), (562, 98645), (905, 61258), (1090, 50861), (1405, 39458), (1810, 30629), (2810, 19729)]