211232020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173141}}^1$

素因数の和:173211

約数の個数: 24

約数和(自身を含む): 450861768

約数和(自身を除く): 239629748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 173141, 346282, 692564, 865705, 1731410, 3462820, 10561601, 21123202, 42246404, 52808005, 105616010, 211232020]

約数ペア:

[(1, 211232020), (2, 105616010), (4, 52808005), (5, 42246404), (10, 21123202), (20, 10561601), (61, 3462820), (122, 1731410), (244, 865705), (305, 692564), (610, 346282), (1220, 173141)]