178292020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{146141}}^1$

素因数の和:146211

約数の個数: 24

約数和(自身を含む): 380553768

約数和(自身を除く): 202261748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 146141, 292282, 584564, 730705, 1461410, 2922820, 8914601, 17829202, 35658404, 44573005, 89146010, 178292020]

約数ペア:

[(1, 178292020), (2, 89146010), (4, 44573005), (5, 35658404), (10, 17829202), (20, 8914601), (61, 2922820), (122, 1461410), (244, 730705), (305, 584564), (610, 292282), (1220, 146141)]