2511220

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{521}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 5305608

約数和(自身を除く): 2794388

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 521, 964, 1042, 1205, 2084, 2410, 2605, 4820, 5210, 10420, 125561, 251122, 502244, 627805, 1255610, 2511220]

約数ペア:

[(1, 2511220), (2, 1255610), (4, 627805), (5, 502244), (10, 251122), (20, 125561), (241, 10420), (482, 5210), (521, 4820), (964, 2605), (1042, 2410), (1205, 2084)]