31024480

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1999}}^1$

素因数の和:2111

約数の個数: 48

約数和(自身を含む): 74088000

約数和(自身を除く): 43063520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 1999, 3104, 3880, 3998, 7760, 7996, 9995, 15520, 15992, 19990, 31984, 39980, 63968, 79960, 159920, 193903, 319840, 387806, 775612, 969515, 1551224, 1939030, 3102448, 3878060, 6204896, 7756120, 15512240, 31024480]

約数ペア:

[(1, 31024480), (2, 15512240), (4, 7756120), (5, 6204896), (8, 3878060), (10, 3102448), (16, 1939030), (20, 1551224), (32, 969515), (40, 775612), (80, 387806), (97, 319840), (160, 193903), (194, 159920), (388, 79960), (485, 63968), (776, 39980), (970, 31984), (1552, 19990), (1940, 15992), (1999, 15520), (3104, 9995), (3880, 7996), (3998, 7760)]