1388794790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1956049}}^1$

素因数の和:1956127

約数の個数: 16

約数和(自身を含む): 2535040800

約数和(自身を除く): 1146246010

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 1956049, 3912098, 9780245, 19560490, 138879479, 277758958, 694397395, 1388794790]

約数ペア:

[(1, 1388794790), (2, 694397395), (5, 277758958), (10, 138879479), (71, 19560490), (142, 9780245), (355, 3912098), (710, 1956049)]