305440240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{545429}}^1$

素因数の和:545449

約数の個数: 40

約数和(自身を含む): 811599840

約数和(自身を除く): 506159600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 545429, 1090858, 2181716, 2727145, 3818003, 4363432, 5454290, 7636006, 8726864, 10908580, 15272012, 19090015, 21817160, 30544024, 38180030, 43634320, 61088048, 76360060, 152720120, 305440240]

約数ペア:

[(1, 305440240), (2, 152720120), (4, 76360060), (5, 61088048), (7, 43634320), (8, 38180030), (10, 30544024), (14, 21817160), (16, 19090015), (20, 15272012), (28, 10908580), (35, 8726864), (40, 7636006), (56, 5454290), (70, 4363432), (80, 3818003), (112, 2727145), (140, 2181716), (280, 1090858), (560, 545429)]