18905150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{929}}^1$

素因数の和:989

約数の個数: 48

約数和(自身を含む): 39439440

約数和(自身を除く): 20534290

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 185, 275, 370, 407, 550, 814, 925, 929, 1850, 1858, 2035, 4070, 4645, 9290, 10175, 10219, 20350, 20438, 23225, 34373, 46450, 51095, 68746, 102190, 171865, 255475, 343730, 378103, 510950, 756206, 859325, 1718650, 1890515, 3781030, 9452575, 18905150]

約数ペア:

[(1, 18905150), (2, 9452575), (5, 3781030), (10, 1890515), (11, 1718650), (22, 859325), (25, 756206), (37, 510950), (50, 378103), (55, 343730), (74, 255475), (110, 171865), (185, 102190), (275, 68746), (370, 51095), (407, 46450), (550, 34373), (814, 23225), (925, 20438), (929, 20350), (1850, 10219), (1858, 10175), (2035, 9290), (4070, 4645)]