129376460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3491}}^1$

素因数の和:3626

約数の個数: 48

約数和(自身を含む): 290394720

約数和(自身を除く): 161018260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3491, 3706, 6982, 7412, 9265, 13964, 17455, 18530, 34910, 37060, 59347, 69820, 118694, 237388, 296735, 380519, 593470, 761038, 1186940, 1522076, 1902595, 3805190, 6468823, 7610380, 12937646, 25875292, 32344115, 64688230, 129376460]

約数ペア:

[(1, 129376460), (2, 64688230), (4, 32344115), (5, 25875292), (10, 12937646), (17, 7610380), (20, 6468823), (34, 3805190), (68, 1902595), (85, 1522076), (109, 1186940), (170, 761038), (218, 593470), (340, 380519), (436, 296735), (545, 237388), (1090, 118694), (1853, 69820), (2180, 59347), (3491, 37060), (3706, 34910), (6982, 18530), (7412, 17455), (9265, 13964)]