18215134720

素因数分解:

$2^9\times 5^1\times {\mathrm{2063}}^1\times {\mathrm{3449}}^1$

素因数の和:5535

約数の個数: 80

約数和(自身を含む): 43707470400

約数和(自身を除く): 25492335680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2063, 2560, 3449, 4126, 6898, 8252, 10315, 13796, 16504, 17245, 20630, 27592, 33008, 34490, 41260, 55184, 66016, 68980, 82520, 110368, 132032, 137960, 165040, 220736, 264064, 275920, 330080, 441472, 528128, 551840, 660160, 882944, 1056256, 1103680, 1320320, 1765888, 2207360, 2640640, 4414720, 5281280, 7115287, 8829440, 14230574, 28461148, 35576435, 56922296, 71152870, 113844592, 142305740, 227689184, 284611480, 455378368, 569222960, 910756736, 1138445920, 1821513472, 2276891840, 3643026944, 4553783680, 9107567360, 18215134720]

約数ペア:

[(1, 18215134720), (2, 9107567360), (4, 4553783680), (5, 3643026944), (8, 2276891840), (10, 1821513472), (16, 1138445920), (20, 910756736), (32, 569222960), (40, 455378368), (64, 284611480), (80, 227689184), (128, 142305740), (160, 113844592), (256, 71152870), (320, 56922296), (512, 35576435), (640, 28461148), (1280, 14230574), (2063, 8829440), (2560, 7115287), (3449, 5281280), (4126, 4414720), (6898, 2640640), (8252, 2207360), (10315, 1765888), (13796, 1320320), (16504, 1103680), (17245, 1056256), (20630, 882944), (27592, 660160), (33008, 551840), (34490, 528128), (41260, 441472), (55184, 330080), (66016, 275920), (68980, 264064), (82520, 220736), (110368, 165040), (132032, 137960)]