20418088

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23127512

約数列:

[1, 2, 4, 8, 17, 29, 31, 34, 58, 62, 68, 116, 124, 136, 167, 232, 248, 334, 493, 527, 668, 899, 986, 1054, 1336, 1798, 1972, 2108, 2839, 3596, 3944, 4216, 4843, 5177, 5678, 7192, 9686, 10354, 11356, 15283, 19372, 20708, 22712, 30566, 38744, 41416, 61132, 82331, 88009, 122264, 150133, 164662, 176018, 300266, 329324, 352036, 600532, 658648, 704072, 1201064, 2552261, 5104522, 10209044, 20418088]

約数ペア:

[(1, 20418088), (2, 10209044), (4, 5104522), (8, 2552261), (17, 1201064), (29, 704072), (31, 658648), (34, 600532), (58, 352036), (62, 329324), (68, 300266), (116, 176018), (124, 164662), (136, 150133), (167, 122264), (232, 88009), (248, 82331), (334, 61132), (493, 41416), (527, 38744), (668, 30566), (899, 22712), (986, 20708), (1054, 19372), (1336, 15283), (1798, 11356), (1972, 10354), (2108, 9686), (2839, 7192), (3596, 5678), (3944, 5177), (4216, 4843)]