28417160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 39622840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 190, 269, 278, 380, 538, 556, 695, 760, 1076, 1112, 1345, 1390, 2152, 2641, 2690, 2780, 5111, 5282, 5380, 5560, 10222, 10564, 10760, 13205, 20444, 21128, 25555, 26410, 37391, 40888, 51110, 52820, 74782, 102220, 105640, 149564, 186955, 204440, 299128, 373910, 710429, 747820, 1420858, 1495640, 2841716, 3552145, 5683432, 7104290, 14208580, 28417160]

約数ペア:

[(1, 28417160), (2, 14208580), (4, 7104290), (5, 5683432), (8, 3552145), (10, 2841716), (19, 1495640), (20, 1420858), (38, 747820), (40, 710429), (76, 373910), (95, 299128), (139, 204440), (152, 186955), (190, 149564), (269, 105640), (278, 102220), (380, 74782), (538, 52820), (556, 51110), (695, 40888), (760, 37391), (1076, 26410), (1112, 25555), (1345, 21128), (1390, 20444), (2152, 13205), (2641, 10760), (2690, 10564), (2780, 10222), (5111, 5560), (5282, 5380)]