20171007558

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{404699}}^1$

素因数の和:404794

約数の個数: 64

約数和(自身を含む): 48952512000

約数和(自身を除く): 28781504442

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 213, 234, 351, 426, 639, 702, 923, 1278, 1846, 1917, 2769, 3834, 5538, 8307, 16614, 24921, 49842, 404699, 809398, 1214097, 2428194, 3642291, 5261087, 7284582, 10522174, 10926873, 15783261, 21853746, 28733629, 31566522, 47349783, 57467258, 86200887, 94699566, 142049349, 172401774, 258602661, 284098698, 373537177, 517205322, 747074354, 775807983, 1120611531, 1551615966, 2241223062, 3361834593, 6723669186, 10085503779, 20171007558]

約数ペア:

[(1, 20171007558), (2, 10085503779), (3, 6723669186), (6, 3361834593), (9, 2241223062), (13, 1551615966), (18, 1120611531), (26, 775807983), (27, 747074354), (39, 517205322), (54, 373537177), (71, 284098698), (78, 258602661), (117, 172401774), (142, 142049349), (213, 94699566), (234, 86200887), (351, 57467258), (426, 47349783), (639, 31566522), (702, 28733629), (923, 21853746), (1278, 15783261), (1846, 10926873), (1917, 10522174), (2769, 7284582), (3834, 5261087), (5538, 3642291), (8307, 2428194), (16614, 1214097), (24921, 809398), (49842, 404699)]