390131404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 783961584

約数和(自身を除く): 393830180

約数列:

[1, 2, 4, 13, 26, 31, 37, 52, 62, 74, 124, 148, 211, 403, 422, 481, 806, 844, 961, 962, 1147, 1612, 1922, 1924, 2294, 2743, 3844, 4588, 5486, 6541, 7807, 10972, 12493, 13082, 14911, 15614, 24986, 26164, 29822, 31228, 35557, 49972, 59644, 71114, 85033, 101491, 142228, 170066, 202771, 202982, 242017, 340132, 405542, 405964, 462241, 484034, 811084, 924482, 968068, 1848964, 2636023, 3146221, 5272046, 6292442, 7502527, 10544092, 12584884, 15005054, 30010108, 97532851, 195065702, 390131404]

約数ペア:

[(1, 390131404), (2, 195065702), (4, 97532851), (13, 30010108), (26, 15005054), (31, 12584884), (37, 10544092), (52, 7502527), (62, 6292442), (74, 5272046), (124, 3146221), (148, 2636023), (211, 1848964), (403, 968068), (422, 924482), (481, 811084), (806, 484034), (844, 462241), (961, 405964), (962, 405542), (1147, 340132), (1612, 242017), (1922, 202982), (1924, 202771), (2294, 170066), (2743, 142228), (3844, 101491), (4588, 85033), (5486, 71114), (6541, 59644), (7807, 49972), (10972, 35557), (12493, 31228), (13082, 29822), (14911, 26164), (15614, 24986)]