668828875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 1086898176

約数和(自身を除く): 418069301

約数列:

[1, 5, 11, 13, 17, 25, 31, 55, 65, 71, 85, 125, 143, 155, 187, 221, 275, 325, 341, 355, 403, 425, 527, 715, 775, 781, 923, 935, 1105, 1207, 1375, 1625, 1705, 1775, 2015, 2125, 2201, 2431, 2635, 3575, 3875, 3905, 4433, 4615, 4675, 5525, 5797, 6035, 6851, 8525, 8875, 10075, 10153, 11005, 12155, 13175, 13277, 15691, 17875, 19525, 22165, 23075, 23375, 24211, 27625, 28613, 28985, 30175, 34255, 37417, 42625, 50375, 50765, 55025, 60775, 65875, 66385, 75361, 78455, 97625, 110825, 115375, 121055, 143065, 144925, 150875, 171275, 172601, 187085, 253825, 275125, 303875, 314743, 331925, 376805, 392275, 411587, 486421, 554125, 605275, 715325, 724625, 856375, 863005, 935425, 1269125, 1573715, 1659625, 1884025, 1961375, 2057935, 2432105, 3026375, 3576625, 4315025, 4677125, 5350631, 7868575, 9420125, 10289675, 12160525, 21575125, 26753155, 39342875, 51448375, 60802625, 133765775, 668828875]

約数ペア:

[(1, 668828875), (5, 133765775), (11, 60802625), (13, 51448375), (17, 39342875), (25, 26753155), (31, 21575125), (55, 12160525), (65, 10289675), (71, 9420125), (85, 7868575), (125, 5350631), (143, 4677125), (155, 4315025), (187, 3576625), (221, 3026375), (275, 2432105), (325, 2057935), (341, 1961375), (355, 1884025), (403, 1659625), (425, 1573715), (527, 1269125), (715, 935425), (775, 863005), (781, 856375), (923, 724625), (935, 715325), (1105, 605275), (1207, 554125), (1375, 486421), (1625, 411587), (1705, 392275), (1775, 376805), (2015, 331925), (2125, 314743), (2201, 303875), (2431, 275125), (2635, 253825), (3575, 187085), (3875, 172601), (3905, 171275), (4433, 150875), (4615, 144925), (4675, 143065), (5525, 121055), (5797, 115375), (6035, 110825), (6851, 97625), (8525, 78455), (8875, 75361), (10075, 66385), (10153, 65875), (11005, 60775), (12155, 55025), (13175, 50765), (13277, 50375), (15691, 42625), (17875, 37417), (19525, 34255), (22165, 30175), (23075, 28985), (23375, 28613), (24211, 27625)]