12421040

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1117}}^1$

素因数の和:1269

約数の個数: 40

約数和(自身を含む): 29112720

約数和(自身を除く): 16691680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1117, 1390, 2224, 2234, 2780, 4468, 5560, 5585, 8936, 11120, 11170, 17872, 22340, 44680, 89360, 155263, 310526, 621052, 776315, 1242104, 1552630, 2484208, 3105260, 6210520, 12421040]

約数ペア:

[(1, 12421040), (2, 6210520), (4, 3105260), (5, 2484208), (8, 1552630), (10, 1242104), (16, 776315), (20, 621052), (40, 310526), (80, 155263), (139, 89360), (278, 44680), (556, 22340), (695, 17872), (1112, 11170), (1117, 11120), (1390, 8936), (2224, 5585), (2234, 5560), (2780, 4468)]