378465440

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{21701}}^1$

素因数の和:21825

約数の個数: 48

約数和(自身を含む): 902369160

約数和(自身を除く): 523903720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 8720, 17440, 21701, 43402, 86804, 108505, 173608, 217010, 347216, 434020, 694432, 868040, 1736080, 2365409, 3472160, 4730818, 9461636, 11827045, 18923272, 23654090, 37846544, 47308180, 75693088, 94616360, 189232720, 378465440]

約数ペア:

[(1, 378465440), (2, 189232720), (4, 94616360), (5, 75693088), (8, 47308180), (10, 37846544), (16, 23654090), (20, 18923272), (32, 11827045), (40, 9461636), (80, 4730818), (109, 3472160), (160, 2365409), (218, 1736080), (436, 868040), (545, 694432), (872, 434020), (1090, 347216), (1744, 217010), (2180, 173608), (3488, 108505), (4360, 86804), (8720, 43402), (17440, 21701)]