321016816

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{253969}}^1$

素因数の和:254056

約数の個数: 20

約数和(自身を含む): 629845600

約数和(自身を除く): 308828784

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 253969, 507938, 1015876, 2031752, 4063504, 20063551, 40127102, 80254204, 160508408, 321016816]

約数ペア:

[(1, 321016816), (2, 160508408), (4, 80254204), (8, 40127102), (16, 20063551), (79, 4063504), (158, 2031752), (316, 1015876), (632, 507938), (1264, 253969)]