409720688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1969811}}^1$

素因数の和:1969832

約数の個数: 20

約数和(自身を含む): 854898408

約数和(自身を除く): 445177720

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1969811, 3939622, 7879244, 15758488, 25607543, 31516976, 51215086, 102430172, 204860344, 409720688]

約数ペア:

[(1, 409720688), (2, 204860344), (4, 102430172), (8, 51215086), (13, 31516976), (16, 25607543), (26, 15758488), (52, 7879244), (104, 3939622), (208, 1969811)]