31389200

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{809}}^1$

素因数の和:924

約数の個数: 60

約数和(自身を含む): 76284180

約数和(自身を除く): 44894980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 809, 970, 1552, 1618, 1940, 2425, 3236, 3880, 4045, 4850, 6472, 7760, 8090, 9700, 12944, 16180, 19400, 20225, 32360, 38800, 40450, 64720, 78473, 80900, 156946, 161800, 313892, 323600, 392365, 627784, 784730, 1255568, 1569460, 1961825, 3138920, 3923650, 6277840, 7847300, 15694600, 31389200]

約数ペア:

[(1, 31389200), (2, 15694600), (4, 7847300), (5, 6277840), (8, 3923650), (10, 3138920), (16, 1961825), (20, 1569460), (25, 1255568), (40, 784730), (50, 627784), (80, 392365), (97, 323600), (100, 313892), (194, 161800), (200, 156946), (388, 80900), (400, 78473), (485, 64720), (776, 40450), (809, 38800), (970, 32360), (1552, 20225), (1618, 19400), (1940, 16180), (2425, 12944), (3236, 9700), (3880, 8090), (4045, 7760), (4850, 6472)]