19645781650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{8527}}^1$

素因数の和:8680

約数の個数: 96

約数和(自身を含む): 41114511360

約数和(自身を除く): 21468729710

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 59, 71, 110, 118, 142, 275, 295, 355, 550, 590, 649, 710, 781, 1298, 1475, 1562, 1775, 2950, 3245, 3550, 3905, 4189, 6490, 7810, 8378, 8527, 16225, 17054, 19525, 20945, 32450, 39050, 41890, 42635, 46079, 85270, 92158, 93797, 104725, 187594, 209450, 213175, 230395, 426350, 460790, 468985, 503093, 605417, 937970, 1006186, 1151975, 1210834, 2303950, 2344925, 2515465, 3027085, 4689850, 5030930, 5534023, 6054170, 6659587, 11068046, 12577325, 13319174, 15135425, 25154650, 27670115, 30270850, 33297935, 35719603, 55340230, 66595870, 71439206, 138350575, 166489675, 178598015, 276701150, 332979350, 357196030, 392915633, 785831266, 892990075, 1785980150, 1964578165, 3929156330, 9822890825, 19645781650]

約数ペア:

[(1, 19645781650), (2, 9822890825), (5, 3929156330), (10, 1964578165), (11, 1785980150), (22, 892990075), (25, 785831266), (50, 392915633), (55, 357196030), (59, 332979350), (71, 276701150), (110, 178598015), (118, 166489675), (142, 138350575), (275, 71439206), (295, 66595870), (355, 55340230), (550, 35719603), (590, 33297935), (649, 30270850), (710, 27670115), (781, 25154650), (1298, 15135425), (1475, 13319174), (1562, 12577325), (1775, 11068046), (2950, 6659587), (3245, 6054170), (3550, 5534023), (3905, 5030930), (4189, 4689850), (6490, 3027085), (7810, 2515465), (8378, 2344925), (8527, 2303950), (16225, 1210834), (17054, 1151975), (19525, 1006186), (20945, 937970), (32450, 605417), (39050, 503093), (41890, 468985), (42635, 460790), (46079, 426350), (85270, 230395), (92158, 213175), (93797, 209450), (104725, 187594)]