353515540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{12689}}^1$

素因数の和:12904

約数の個数: 48

約数和(自身を含む): 852768000

約数和(自身を除く): 499252460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 12689, 13930, 25378, 27860, 50756, 63445, 88823, 126890, 177646, 253780, 355292, 444115, 888230, 1776460, 2525111, 5050222, 10100444, 12625555, 17675777, 25251110, 35351554, 50502220, 70703108, 88378885, 176757770, 353515540]

約数ペア:

[(1, 353515540), (2, 176757770), (4, 88378885), (5, 70703108), (7, 50502220), (10, 35351554), (14, 25251110), (20, 17675777), (28, 12625555), (35, 10100444), (70, 5050222), (140, 2525111), (199, 1776460), (398, 888230), (796, 444115), (995, 355292), (1393, 253780), (1990, 177646), (2786, 126890), (3980, 88823), (5572, 63445), (6965, 50756), (12689, 27860), (13930, 25378)]