12995156920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:745

約数の個数: 128

約数和(自身を含む): 30373755840

約数和(自身を除く): 17378598920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 101, 106, 137, 202, 212, 265, 274, 404, 424, 443, 505, 530, 548, 685, 808, 886, 1010, 1060, 1096, 1370, 1772, 2020, 2120, 2215, 2740, 3544, 4040, 4430, 5353, 5480, 7261, 8860, 10706, 13837, 14522, 17720, 21412, 23479, 26765, 27674, 29044, 36305, 42824, 44743, 46958, 53530, 55348, 58088, 60691, 69185, 72610, 89486, 93916, 107060, 110696, 117395, 121382, 138370, 145220, 178972, 187832, 214120, 223715, 234790, 242764, 276740, 290440, 303455, 357944, 447430, 469580, 485528, 553480, 606910, 733361, 894860, 939160, 1213820, 1466722, 1789720, 2371379, 2427640, 2933444, 3216623, 3666805, 4742758, 5866888, 6129791, 6433246, 7333610, 9485516, 11856895, 12259582, 12866492, 14667220, 16083115, 18971032, 23713790, 24519164, 25732984, 29334440, 30648955, 32166230, 47427580, 49038328, 61297910, 64332460, 94855160, 122595820, 128664920, 245191640, 324878923, 649757846, 1299515692, 1624394615, 2599031384, 3248789230, 6497578460, 12995156920]

約数ペア:

[(1, 12995156920), (2, 6497578460), (4, 3248789230), (5, 2599031384), (8, 1624394615), (10, 1299515692), (20, 649757846), (40, 324878923), (53, 245191640), (101, 128664920), (106, 122595820), (137, 94855160), (202, 64332460), (212, 61297910), (265, 49038328), (274, 47427580), (404, 32166230), (424, 30648955), (443, 29334440), (505, 25732984), (530, 24519164), (548, 23713790), (685, 18971032), (808, 16083115), (886, 14667220), (1010, 12866492), (1060, 12259582), (1096, 11856895), (1370, 9485516), (1772, 7333610), (2020, 6433246), (2120, 6129791), (2215, 5866888), (2740, 4742758), (3544, 3666805), (4040, 3216623), (4430, 2933444), (5353, 2427640), (5480, 2371379), (7261, 1789720), (8860, 1466722), (10706, 1213820), (13837, 939160), (14522, 894860), (17720, 733361), (21412, 606910), (23479, 553480), (26765, 485528), (27674, 469580), (29044, 447430), (36305, 357944), (42824, 303455), (44743, 290440), (46958, 276740), (53530, 242764), (55348, 234790), (58088, 223715), (60691, 214120), (69185, 187832), (72610, 178972), (89486, 145220), (93916, 138370), (107060, 121382), (110696, 117395)]