18761608

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 39657600

約数和(自身を除く): 20895992

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 67, 68, 71, 116, 134, 136, 142, 232, 268, 284, 493, 536, 568, 986, 1139, 1207, 1943, 1972, 2059, 2278, 2414, 3886, 3944, 4118, 4556, 4757, 4828, 7772, 8236, 9112, 9514, 9656, 15544, 16472, 19028, 33031, 35003, 38056, 66062, 70006, 80869, 132124, 137953, 140012, 161738, 264248, 275906, 280024, 323476, 551812, 646952, 1103624, 2345201, 4690402, 9380804, 18761608]

約数ペア:

[(1, 18761608), (2, 9380804), (4, 4690402), (8, 2345201), (17, 1103624), (29, 646952), (34, 551812), (58, 323476), (67, 280024), (68, 275906), (71, 264248), (116, 161738), (134, 140012), (136, 137953), (142, 132124), (232, 80869), (268, 70006), (284, 66062), (493, 38056), (536, 35003), (568, 33031), (986, 19028), (1139, 16472), (1207, 15544), (1943, 9656), (1972, 9514), (2059, 9112), (2278, 8236), (2414, 7772), (3886, 4828), (3944, 4757), (4118, 4556)]