19997776504

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{3163}}^1\times {\mathrm{11131}}^1$

素因数の和:14371

約数の個数: 32

約数和(自身を含む): 38039379840

約数和(自身を除く): 18041603336

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 3163, 6326, 11131, 12652, 22262, 25304, 44524, 89048, 224573, 449146, 790301, 898292, 1580602, 1796584, 3161204, 6322408, 35207353, 70414706, 140829412, 281658824, 2499722063, 4999444126, 9998888252, 19997776504]

約数ペア:

[(1, 19997776504), (2, 9998888252), (4, 4999444126), (8, 2499722063), (71, 281658824), (142, 140829412), (284, 70414706), (568, 35207353), (3163, 6322408), (6326, 3161204), (11131, 1796584), (12652, 1580602), (22262, 898292), (25304, 790301), (44524, 449146), (89048, 224573)]