388668420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{308467}}^1$

素因数の和:308489

約数の個数: 72

約数和(自身を含む): 1347388224

約数和(自身を除く): 958719804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 308467, 616934, 925401, 1233868, 1542335, 1850802, 2159269, 2776203, 3084670, 3701604, 4318538, 4627005, 5552406, 6169340, 6477807, 8637076, 9254010, 10796345, 11104812, 12955614, 13881015, 18508020, 19433421, 21592690, 25911228, 27762030, 32389035, 38866842, 43185380, 55524060, 64778070, 77733684, 97167105, 129556140, 194334210, 388668420]

約数ペア:

[(1, 388668420), (2, 194334210), (3, 129556140), (4, 97167105), (5, 77733684), (6, 64778070), (7, 55524060), (9, 43185380), (10, 38866842), (12, 32389035), (14, 27762030), (15, 25911228), (18, 21592690), (20, 19433421), (21, 18508020), (28, 13881015), (30, 12955614), (35, 11104812), (36, 10796345), (42, 9254010), (45, 8637076), (60, 6477807), (63, 6169340), (70, 5552406), (84, 4627005), (90, 4318538), (105, 3701604), (126, 3084670), (140, 2776203), (180, 2159269), (210, 1850802), (252, 1542335), (315, 1233868), (420, 925401), (630, 616934), (1260, 308467)]