291216198260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1667}}^1\times {\mathrm{671903}}^1$

素因数の和:673592

約数の個数: 48

約数和(自身を含む): 658992692736

約数和(自身を除く): 367776494476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1667, 3334, 6668, 8335, 16670, 21671, 33340, 43342, 86684, 108355, 216710, 433420, 671903, 1343806, 2687612, 3359515, 6719030, 8734739, 13438060, 17469478, 34938956, 43673695, 87347390, 174694780, 1120062301, 2240124602, 4480249204, 5600311505, 11200623010, 14560809913, 22401246020, 29121619826, 58243239652, 72804049565, 145608099130, 291216198260]

約数ペア:

[(1, 291216198260), (2, 145608099130), (4, 72804049565), (5, 58243239652), (10, 29121619826), (13, 22401246020), (20, 14560809913), (26, 11200623010), (52, 5600311505), (65, 4480249204), (130, 2240124602), (260, 1120062301), (1667, 174694780), (3334, 87347390), (6668, 43673695), (8335, 34938956), (16670, 17469478), (21671, 13438060), (33340, 8734739), (43342, 6719030), (86684, 3359515), (108355, 2687612), (216710, 1343806), (433420, 671903)]