218917240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{288049}}^1$

素因数の和:288079

約数の個数: 32

約数和(自身を含む): 518490000

約数和(自身を除く): 299572760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 288049, 576098, 1152196, 1440245, 2304392, 2880490, 5472931, 5760980, 10945862, 11521960, 21891724, 27364655, 43783448, 54729310, 109458620, 218917240]

約数ペア:

[(1, 218917240), (2, 109458620), (4, 54729310), (5, 43783448), (8, 27364655), (10, 21891724), (19, 11521960), (20, 10945862), (38, 5760980), (40, 5472931), (76, 2880490), (95, 2304392), (152, 1440245), (190, 1152196), (380, 576098), (760, 288049)]