28207942760

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5073371}}^1$

素因数の和:5073521

約数の個数: 32

約数和(自身を含む): 63924487200

約数和(自身を除く): 35716544440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 5073371, 10146742, 20293484, 25366855, 40586968, 50733710, 101467420, 202934840, 705198569, 1410397138, 2820794276, 3525992845, 5641588552, 7051985690, 14103971380, 28207942760]

約数ペア:

[(1, 28207942760), (2, 14103971380), (4, 7051985690), (5, 5641588552), (8, 3525992845), (10, 2820794276), (20, 1410397138), (40, 705198569), (139, 202934840), (278, 101467420), (556, 50733710), (695, 40586968), (1112, 25366855), (1390, 20293484), (2780, 10146742), (5560, 5073371)]