20180558271

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:876

約数の個数: 64

約数和(自身を含む): 30098718720

約数和(自身を除く): 9918160449

約数列:

[1, 3, 17, 23, 51, 69, 179, 223, 391, 431, 537, 669, 1173, 1293, 3043, 3791, 4117, 5129, 7327, 9129, 9913, 11373, 12351, 15387, 21981, 29739, 39917, 69989, 77149, 87193, 96113, 119751, 168521, 209967, 231447, 261579, 288339, 505563, 678589, 918091, 1311533, 1633921, 1774427, 2035767, 2210599, 2754273, 3934599, 4901763, 5323281, 6631797, 15607547, 17204227, 30165259, 37580183, 46822641, 51612681, 90495777, 112740549, 292471859, 395697221, 877415577, 1187091663, 6726852757, 20180558271]

約数ペア:

[(1, 20180558271), (3, 6726852757), (17, 1187091663), (23, 877415577), (51, 395697221), (69, 292471859), (179, 112740549), (223, 90495777), (391, 51612681), (431, 46822641), (537, 37580183), (669, 30165259), (1173, 17204227), (1293, 15607547), (3043, 6631797), (3791, 5323281), (4117, 4901763), (5129, 3934599), (7327, 2754273), (9129, 2210599), (9913, 2035767), (11373, 1774427), (12351, 1633921), (15387, 1311533), (21981, 918091), (29739, 678589), (39917, 505563), (69989, 288339), (77149, 261579), (87193, 231447), (96113, 209967), (119751, 168521)]