18381640240

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1030361}}^1$

素因数の和:1030597

約数の個数: 40

約数和(自身を含む): 42929002368

約数和(自身を除く): 24547362128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920, 17840, 1030361, 2060722, 4121444, 5151805, 8242888, 10303610, 16485776, 20607220, 41214440, 82428880, 229770503, 459541006, 919082012, 1148852515, 1838164024, 2297705030, 3676328048, 4595410060, 9190820120, 18381640240]

約数ペア:

[(1, 18381640240), (2, 9190820120), (4, 4595410060), (5, 3676328048), (8, 2297705030), (10, 1838164024), (16, 1148852515), (20, 919082012), (40, 459541006), (80, 229770503), (223, 82428880), (446, 41214440), (892, 20607220), (1115, 16485776), (1784, 10303610), (2230, 8242888), (3568, 5151805), (4460, 4121444), (8920, 2060722), (17840, 1030361)]