19572040

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^2\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 45114300

約数和(自身を除く): 25542260

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 109, 134, 218, 268, 335, 436, 536, 545, 670, 872, 1090, 1340, 2180, 2680, 4360, 4489, 7303, 8978, 14606, 17956, 22445, 29212, 35912, 36515, 44890, 58424, 73030, 89780, 146060, 179560, 292120, 489301, 978602, 1957204, 2446505, 3914408, 4893010, 9786020, 19572040]

約数ペア:

[(1, 19572040), (2, 9786020), (4, 4893010), (5, 3914408), (8, 2446505), (10, 1957204), (20, 978602), (40, 489301), (67, 292120), (109, 179560), (134, 146060), (218, 89780), (268, 73030), (335, 58424), (436, 44890), (536, 36515), (545, 35912), (670, 29212), (872, 22445), (1090, 17956), (1340, 14606), (2180, 8978), (2680, 7303), (4360, 4489)]