408404984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{20347}}^1$

素因数の和:20559

約数の個数: 32

約数和(自身を含む): 828977520

約数和(自身を除く): 420572536

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193, 386, 772, 1544, 2509, 5018, 10036, 20072, 20347, 40694, 81388, 162776, 264511, 529022, 1058044, 2116088, 3926971, 7853942, 15707884, 31415768, 51050623, 102101246, 204202492, 408404984]

約数ペア:

[(1, 408404984), (2, 204202492), (4, 102101246), (8, 51050623), (13, 31415768), (26, 15707884), (52, 7853942), (104, 3926971), (193, 2116088), (386, 1058044), (772, 529022), (1544, 264511), (2509, 162776), (5018, 81388), (10036, 40694), (20072, 20347)]