290163920

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{18793}}^1$

素因数の和:18999

約数の個数: 40

約数和(自身を含む): 678162696

約数和(自身を除く): 387998776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 18793, 37586, 75172, 93965, 150344, 187930, 300688, 375860, 751720, 1503440, 3627049, 7254098, 14508196, 18135245, 29016392, 36270490, 58032784, 72540980, 145081960, 290163920]

約数ペア:

[(1, 290163920), (2, 145081960), (4, 72540980), (5, 58032784), (8, 36270490), (10, 29016392), (16, 18135245), (20, 14508196), (40, 7254098), (80, 3627049), (193, 1503440), (386, 751720), (772, 375860), (965, 300688), (1544, 187930), (1930, 150344), (3088, 93965), (3860, 75172), (7720, 37586), (15440, 18793)]