1378903920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{72727}}^1$

素因数の和:72822

約数の個数: 80

約数和(自身を含む): 4328770560

約数和(自身を除く): 2949866640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1185, 1264, 1580, 1896, 2370, 3160, 3792, 4740, 6320, 9480, 18960, 72727, 145454, 218181, 290908, 363635, 436362, 581816, 727270, 872724, 1090905, 1163632, 1454540, 1745448, 2181810, 2909080, 3490896, 4363620, 5745433, 5818160, 8727240, 11490866, 17236299, 17454480, 22981732, 28727165, 34472598, 45963464, 57454330, 68945196, 86181495, 91926928, 114908660, 137890392, 172362990, 229817320, 275780784, 344725980, 459634640, 689451960, 1378903920]

約数ペア:

[(1, 1378903920), (2, 689451960), (3, 459634640), (4, 344725980), (5, 275780784), (6, 229817320), (8, 172362990), (10, 137890392), (12, 114908660), (15, 91926928), (16, 86181495), (20, 68945196), (24, 57454330), (30, 45963464), (40, 34472598), (48, 28727165), (60, 22981732), (79, 17454480), (80, 17236299), (120, 11490866), (158, 8727240), (237, 5818160), (240, 5745433), (316, 4363620), (395, 3490896), (474, 2909080), (632, 2181810), (790, 1745448), (948, 1454540), (1185, 1163632), (1264, 1090905), (1580, 872724), (1896, 727270), (2370, 581816), (3160, 436362), (3792, 363635), (4740, 290908), (6320, 218181), (9480, 145454), (18960, 72727)]