20237628880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{331547}}^1$

素因数の和:331676

約数の個数: 80

約数和(自身を含む): 54267776640

約数和(自身を除く): 34030147760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1526, 1744, 2180, 3052, 3815, 4360, 6104, 7630, 8720, 12208, 15260, 30520, 61040, 331547, 663094, 1326188, 1657735, 2320829, 2652376, 3315470, 4641658, 5304752, 6630940, 9283316, 11604145, 13261880, 18566632, 23208290, 26523760, 36138623, 37133264, 46416580, 72277246, 92833160, 144554492, 180693115, 185666320, 252970361, 289108984, 361386230, 505940722, 578217968, 722772460, 1011881444, 1264851805, 1445544920, 2023762888, 2529703610, 2891089840, 4047525776, 5059407220, 10118814440, 20237628880]

約数ペア:

[(1, 20237628880), (2, 10118814440), (4, 5059407220), (5, 4047525776), (7, 2891089840), (8, 2529703610), (10, 2023762888), (14, 1445544920), (16, 1264851805), (20, 1011881444), (28, 722772460), (35, 578217968), (40, 505940722), (56, 361386230), (70, 289108984), (80, 252970361), (109, 185666320), (112, 180693115), (140, 144554492), (218, 92833160), (280, 72277246), (436, 46416580), (545, 37133264), (560, 36138623), (763, 26523760), (872, 23208290), (1090, 18566632), (1526, 13261880), (1744, 11604145), (2180, 9283316), (3052, 6630940), (3815, 5304752), (4360, 4641658), (6104, 3315470), (7630, 2652376), (8720, 2320829), (12208, 1657735), (15260, 1326188), (30520, 663094), (61040, 331547)]