18910565560

素因数分解:

$2^3\times 5^1\times {\mathrm{4229}}^1\times {\mathrm{111791}}^1$

素因数の和:116031

約数の個数: 32

約数和(自身を含む): 42559214400

約数和(自身を除く): 23648648840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4229, 8458, 16916, 21145, 33832, 42290, 84580, 111791, 169160, 223582, 447164, 558955, 894328, 1117910, 2235820, 4471640, 472764139, 945528278, 1891056556, 2363820695, 3782113112, 4727641390, 9455282780, 18910565560]

約数ペア:

[(1, 18910565560), (2, 9455282780), (4, 4727641390), (5, 3782113112), (8, 2363820695), (10, 1891056556), (20, 945528278), (40, 472764139), (4229, 4471640), (8458, 2235820), (16916, 1117910), (21145, 894328), (33832, 558955), (42290, 447164), (84580, 223582), (111791, 169160)]