18786049120

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^2\times {\mathrm{69847}}^1$

素因数の和:69944

約数の個数: 72

約数和(自身を含む): 45491583312

約数和(自身を除く): 26705534192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 1681, 3280, 3362, 6560, 6724, 8405, 13448, 16810, 26896, 33620, 53792, 67240, 69847, 134480, 139694, 268960, 279388, 349235, 558776, 698470, 1117552, 1396940, 2235104, 2793880, 2863727, 5587760, 5727454, 11175520, 11454908, 14318635, 22909816, 28637270, 45819632, 57274540, 91639264, 114549080, 117412807, 229098160, 234825614, 458196320, 469651228, 587064035, 939302456, 1174128070, 1878604912, 2348256140, 3757209824, 4696512280, 9393024560, 18786049120]

約数ペア:

[(1, 18786049120), (2, 9393024560), (4, 4696512280), (5, 3757209824), (8, 2348256140), (10, 1878604912), (16, 1174128070), (20, 939302456), (32, 587064035), (40, 469651228), (41, 458196320), (80, 234825614), (82, 229098160), (160, 117412807), (164, 114549080), (205, 91639264), (328, 57274540), (410, 45819632), (656, 28637270), (820, 22909816), (1312, 14318635), (1640, 11454908), (1681, 11175520), (3280, 5727454), (3362, 5587760), (6560, 2863727), (6724, 2793880), (8405, 2235104), (13448, 1396940), (16810, 1117552), (26896, 698470), (33620, 558776), (53792, 349235), (67240, 279388), (69847, 268960), (134480, 139694)]